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As filed with the Securities and Exchange Commission on August 16, 2002

Registration No. 333-            

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM S-4
REGISTRATION STATEMENT
Under
The Securities Act of 1933

OREGON STEEL MILLS, INC.
(Exact name of registrant as specified in its charter)

Delaware 3312 94-0506370
(State or other jurisdiction of
incorporation or organization)		 (Primary Standard Industrial
Classification Code Number)		 (I.R.S. Employer
Identification No.)

1000 S.W. Broadway, Suite 2200
Portland, Oregon 97205
(503) 223-9228
(Address, including zip code, and telephone number, including
area code, of registrant's principal executive offices)

L. RAY ADAMS
Vice President, Finance, Chief Financial Officer and Treasurer
1000 S.W. Broadway, Suite 2200
Portland, Oregon 97205
(503) 223-9228
(Name, address, including zip code, and telephone number, including area code, of agent for service)

It is respectfully requested that the Commission send copies of all notices, orders and communications to:

ROBERT J. MOORMAN
STEVEN H. HULL
Stoel Rives LLP
900 SW Fifth Avenue, Suite 2600
Portland, Oregon 97204
(503) 224-3380

        Approximate date of commencement of proposed sale to the public: As promptly as practicable after this registration statement becomes effective.

        If the securities being registered on this Form are being offered in connection with the formation of a holding company and there is compliance with General Instruction G, check the following box. o

        If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. o

        If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. o

CALCULATION OF REGISTRATION FEE


Title of each class of securities to be Registered   Amount to be registered   Proposed maximum offering price per unit   Proposed maximum aggregate offering price   Amount of registration fee
10% First Mortgage Notes due 2009   $305,000,000   100%(1)   $305,000,000   $27,716(2)
Guarantees of 10% First Mortgage Notes due 2009   $305,000,000   —       —(3)
(1)
Estimated solely for the purpose of calculating the registration fee under Rule 457 of the Securities Act of 1933.

(2)
The registration fee for the securities offered hereby has been calculated under Rule 457(f)(2) under the Securities Act based on a book value of the securities of $301,254,600.

(3)
Pursuant to Rule 457(n) under the Securities Act, no separate fee is payable for the Guarantees.


        The Registrants hereby amend this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrants shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until the Registration Statement shall become effective on such a date as the Commission, acting pursuant to said Section 8(a), may determine.


TABLE OF ADDITIONAL REGISTRANTS

Exact name of registrant as specified in its charter; address, including zip code, and telephone number, including area code, of principal executive offices
   State or other
jurisdiction of
incorporation or
organization
   Primary Standard
Industrial
Classification Code
Number
   I.R.S. Employer
Identification
Number
New CF&I, Inc.
1000 S.W. Broadway, Suite 2200
Portland, OR 97205
(503) 240-5787		   Delaware   3310   93-1086900

CF&I Steel, L.P.
1000 S.W. Broadway, Suite 2200
Portland, OR 97205
(503) 240-5787
 
Delaware
 
3310
 
93-1103440

Information contained herein is subject to completion or amendment. A registration statement relating to these securities has been filed with the Securities and Exchange Commission. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This prospectus shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of these securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state.

SUBJECT TO COMPLETION, DATED AUGUST 16, 2002

GRAPHIC

Offer for all Outstanding
10% First Mortgage Notes due 2009
in Exchange for
10% First Mortgage Notes due 2009, which have been registered under the Securities Act of 1933,
of

OREGON STEEL MILLS, INC.

         The Exchange Offer will expire at 5:00 p.m. New York City time, on                        , 2002, unless extended.

        We are offering to exchange all of our $305,000,000 10% first mortgage notes due 2009, which we refer to as the original notes, for $305,000,000 in registered 10% first mortgage notes due 2009, which we refer to as the exchange notes. The original notes and the exchange notes are collectively referred to as the notes. The original notes were issued on July 15, 2002. The exchange notes represent the same indebtedness as the original notes. The terms of the exchange notes are substantially identical to the terms of the original notes except that the exchange notes are registered under the Securities Act of 1933 and therefore are freely transferable, subject to certain conditions.

        You should consider the following:

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

        The date of this prospectus is            , 2002.

You should rely only on the information contained in this prospectus. We have not authorized any person to provide you with any information or represent anything about us or this offering that is not contained in this prospectus, and, if any person gives you any other information or makes other representations, you should not rely upon that information or representation as having been authorized by us. We are not making an offer to sell these securities in any jurisdiction where an offer or sale is not permitted. You should be aware that the information appearing in this prospectus is accurate only as of the date on the front cover of this prospectus. Our business, financial condition, results of operations and prospects may have changed since that date.


TABLE OF CONTENTS

 
   Page
Incorporation of Documents by Reference   1
Disclosure Regarding Forward-Looking Statements   2
Industry and Market Data   3
Where You Can Find Additional Information   4
Prospectus Summary   5
Summary of the Exchange Offer   7
The Exchange Notes   12
Risk Factors   15
Use of Proceeds   33
Ratio of Earnings to Fixed Charges   33
Selected Historical Consolidated Financial Data   34
The Exchange Offer   36
Description of Notes   47
Certain United States Federal Income Tax Considerations   120
Plan of Distribution   120
Legal Matters   121
Experts   121

        Each broker-dealer that receives exchange notes for its own account pursuant to the Exchange Offer must acknowledge that it will deliver a prospectus in connection with any resale of such exchange notes. The Letter of Transmittal states that by so acknowledging and by delivering a prospectus, a broker-dealer will not be deemed to admit that it is an "underwriter" within the meaning of the Securities Act. This prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with resales of exchange notes received in exchange for original notes where such original notes were acquired by such broker-dealer as a result of market-making activities or other trading activities. The Company has agreed that, for a period of 180 days after the Expiration Date (as defined herein), it will make this prospectus available to any broker-dealer for use in connection with any such resale. See "Plan of Distribution" on page 120.


INCORPORATION OF DOCUMENTS BY REFERENCE

        We are "incorporating by reference" the information we file with the Securities and Exchange Commission, or SEC, into this prospectus, which means that this prospectus incorporates important business and financial information about our company that is not included in or delivered with this prospectus. The information incorporated by reference is considered to be part of this prospectus, and information in documents that we file later with the SEC will automatically update and supersede

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information in this prospectus. We incorporate by reference the documents listed below into this prospectus, and any future filings made by us, CF&I Steel, L.P. or New CF&I, Inc. with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended, until we close this Exchange Offer. The documents we incorporate by reference are:


DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS

        This prospectus contains "forward-looking statements," as defined by federal securities laws, with respect to our financial condition, results of operations and business and our expectations or beliefs concerning future events. Statements made in this prospectus that are not statements of historical fact are forward-looking statements. In addition, from time to time, we and our representatives may make statements that are forward-looking. This section provides you with cautionary statements identifying, for purposes of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, important factors that could cause our actual results to differ materially from those contained in forward-looking statements made in this prospectus or otherwise made by us or on our behalf. You can identify these forward-looking statements by forward-looking words such as, but not limited to, "expect", "anticipate", "believe", "intend", "plan", "seek", "estimate", "continue", "may", "will", "would", "could", "likely", and similar expressions. You are cautioned not to place undue reliance on these forward-looking statements.

        All forward-looking statements involve risks and uncertainties. Many risks and uncertainties are inherent in the steel industry. Others are more specific to our operations. The occurrence of any of the events described, and the achievement of the expected results, depend on many events, some or all of which are not predictable or within our control. Because of such risks, uncertainties and assumptions, actual results may differ materially from expected results, and the forward-looking events described in the forward-looking statements may not occur. The following are some of the factors that could cause actual results to differ from our expectations, may affect our ability to pay timely amounts due under the notes and/or may affect the value of the notes:

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        All future written and verbal forward-looking statements attributable to us or any person acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. We caution you that any forward-looking statement reflects only our belief at the time the statement is made. We undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date on which the statement is made.


INDUSTRY AND MARKET DATA

        In this prospectus we rely on and refer to information and statistics regarding our markets. We obtained such information and statistics from various sources, including discussions with our customers and our own internal estimates. We believe these sources and estimates are reliable, but we have not independently verified such information and statistics and cannot guarantee the accuracy or completeness of such information and statistics.

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WHERE YOU CAN FIND ADDITIONAL INFORMATION

        We file annual, quarterly and other reports, proxy statements and other information with the Securities and Exchange Commission. Our SEC filings are available over the Internet at the SEC's web site at http://www.sec.gov. You may also read and copy any document we file with the SEC at its public reference facility:

Public Reference Room Office
450 Fifth Street, N.W.
Room 1024
Washington, D.C. 20549

        You may also obtain copies of the documents at prescribed rates by writing to the Public Reference Section of the SEC at 450 Fifth Street, N.W., Room 1024, Washington, D.C. 20549. Please call 1-800-732-0330 for further information on the operations of the public reference facilities. Our SEC filings are also available at the offices of the New York Stock Exchange, 20 Broad Street, New York, New York 10005.

        This prospectus incorporates documents by reference which are not presented herein or delivered herewith. These documents are available upon request from Oregon Steel Mills, Inc., 1000 S.W. Broadway, Suite 2200, Portland, Oregon 97205, Attention: Vice President, Corporate Affairs (telephone number (503) 240-5787). To ensure timely delivery of the documents, any request should be made no later than            , 2002, which is five business days before the expiration of the Exchange Offer.

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SUMMARY

        This summary highlights information contained elsewhere in this prospectus. This summary is not complete and does not contain all of the information that may be important to you. We urge you to read carefully this entire prospectus and all of the information incorporated by reference into this prospectus, including the "Risk Factors" section and our consolidated financial statements and related notes. In this prospectus (i) except with respect to the notes and unless the context requires otherwise, "Oregon Steel," the "Company," "we," "our" and "us" refer to Oregon Steel Mills, Inc. and its subsidiaries and (ii) EBITDA is defined as the sum of consolidated net income (loss), consolidated depreciation and amortization expenses, consolidated interest expense and consolidated income tax expense or benefit.


GENERAL

        On July 15, 2002, we issued an aggregate principal amount of $305 million of 10% first mortgage notes due 2009 in an offering exempt from registration under the Securities Act. We refer to the notes issued in July 2002 as the "original notes." The term "exchange notes" refers to the 10% first mortgage notes due 2009 newly offered under this prospectus. The original notes and the exchange notes are collectively referred to as the "notes."

        In connection with the private offering of the original notes, we entered into a registration rights agreement. Under the registration rights agreement, we are obligated, among other things, to deliver to you this prospectus and complete the exchange offer. This exchange offer allows you to exchange your original notes for newly registered exchange notes with substantially similar terms. If the exchange offer is not completed as contemplated in the registration rights agreement, we will be required to pay liquidated damages pursuant to the terms of the registration rights agreement. You should read the registration rights agreement in its entirety for more information. Refer to the section in this prospectus entitled "Where You Can Find More Information" for information on how to obtain a copy of the registration rights agreement.


THE COMPANY

        Oregon Steel Mills, Inc. ("Oregon Steel" or the "Company") manufactures and markets one of the broadest lines of specialty and commodity steel products of any domestic minimill company. The Company's specialty products include large diameter pipe, electric resistance welded ("ERW") pipe, seamless pipe, deep-head hardened ("DHH") rail, specialty plate, including coiled plate, and specialty rod. The Company also produces commodity plate, including coiled plate, rail, rod, bar and semifinished blooms and billets. The Company targets a diverse customer base located primarily west of the Mississippi River and in western Canada. The Company's primary customers include energy transmission companies, major U.S. railroads, steel service centers, and heavy equipment manufacturers.

        Oregon Steel operates two steel minimills and seven finishing facilities in the western United States and Canada. The Company is organized into two business units known as the Oregon Steel Division and the Rocky Mountain Steel Mills ("RMSM") Division. The Oregon Steel Division is centered on the Company's steel plate minimill in Portland, Oregon (the "Portland Mill"). The Portland Mill is the only hot-rolled steel plate and coil minimill in the eleven western states. The Oregon Steel Division's facility in Napa, California (the "Napa Pipe Mill") is a large diameter steel pipe mill and fabrication facility. The Oregon Steel Division also produces large diameter pipe and ERW pipe at its 60-percent owned pipe mill in Camrose, Alberta, Canada (the "Camrose Pipe Mill"). The annual production capacities of the Portland Mill, Napa Pipe Mill and Camrose Pipe Mill are 1.2 million, 400,000, and 320,000 tons, respectively. The RMSM Division consists of steelmaking and finishing facilities of CF&I Steel, L.P. ("CF&I") located in Pueblo, Colorado (the "Pueblo Mill"). The

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Pueblo Mill is a minimill which supplies steel for the Company's rail, rod and bar, and seamless tubular finishing mills. The annual production capacity of the Pueblo Mill is 1.2 million tons.

        The Company was founded in 1926 by William G. Gilmore and was incorporated in California in 1928. The Company was reincorporated in Delaware in 1974. Its executive offices are located at 1000 SW Broadway, Suite 2200, Portland, Oregon 97205, and its telephone number is (503) 223-9228.

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SUMMARY OF THE EXCHANGE OFFER

        The following summary is provided solely for your convenience. This summary is not intended to be complete. You should read the full text and more specific details contained in "The Exchange Offer" section of this prospectus. For a more detailed description of the exchange notes, see "Description of Notes."

        On July 15, 2002, we completed the private offering of the original notes. In this exchange offer, we are offering to exchange, for the original notes, exchange notes that are identical in all material respects to the original notes, except that the exchange notes have been registered under the Securities Act.

        Any original notes that you do not tender or we do not accept will, following the exchange offer, continue to be restricted securities. Therefore, you may transfer or resell them only in a transaction registered under or exempt from the Securities Act and applicable state securities laws. We will issue the exchange notes in exchange for the original notes under the exchange offer only following the satisfaction of the procedures and conditions described in "The Exchange Offer."

        Because we anticipate that most holders of the original notes will elect to exchange their original notes, we expect that the liquidity of the markets, if any, for any original notes remaining after the completion of the exchange offer will be substantially limited. Any original notes tendered and exchanged in the exchange offer will reduce the aggregate principal amount outstanding of the original notes.

Registration Rights Agreement   We sold the original notes on July 15, 2002 to the initial purchaser—Goldman, Sachs & Co. The original notes were issued pursuant to an indenture dated as of July 15, 2002. In connection with the sale of the original notes, we entered into a registration rights agreement that provides for the exchange offer.

 
 
In the registration rights agreement we agreed to file a registration statement for the exchange offer within 60 days of the issue date for the original notes and to use our reasonable best efforts to cause the registration statement to become effective as soon as practicable, but no later than 180 days after the issue date for the original notes, and complete the exchange offer within 45 days of the date the registration statement is declared effective.

 
 
We will pay liquidated damages on the original notes if we do not file the required registration statement on time, or if the Securities and Exchange Commission, or SEC, does not declare the required registration statement effective on time, or we do not complete the exchange offer on or prior to 45 days of the date the registration statement is declared effective.

 
 
The exchange offer satisfies your rights under the registration rights agreement. After the exchange is over, you will not be entitled to any exchange or, with limited exceptions, registration rights with respect to your original notes.

The Exchange Offer
 
We are offering to exchange up to $305,000,000 aggregate principal amount of our 10% first mortgage notes due 2009 for up to $305,000,000 aggregate principal amount of our 10% first mortgage exchange notes due 2009.

 
 
 
 
 

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Purpose and Effect
 
The purpose of the exchange offer is to give you the opportunity to exchange your original notes for exchange notes that have been registered under the Securities Act.

Resale
 
We believe that the exchange notes may be offered for resale, resold and otherwise transferred by you (unless you are our "affiliate" within the meaning of Rule 405 under the Securities Act) without compliance with the registration or prospectus delivery provisions of the Securities Act if:

 
 
•
 
you are acquiring the exchange notes in the ordinary course of your business; and

 
 
•
 
you are not participating, do not intend to participate, and have no arrangement or understanding with any person to participate, in a distribution of the exchange notes.

 
 
Each participating broker-dealer that receives exchange notes for its own account under the exchange offer in exchange for original notes that were acquired by the broker-dealer as a result of market-making or other trading activity must acknowledge that it will deliver a prospectus in connection with any resale of the exchange notes. See "Plan of Distribution."

 
 
Any holder of original notes who:

 
 
•
 
is our affiliate;

 
 
•
 
does not acquire exchange notes in the ordinary course of its business; or

 
 
•
 
exchanges original notes in the exchange offer with the intention to participate, or for the purpose of participating, in a distribution of exchange notes

 
 
must, in the absence of an exemption, comply with the registration and prospectus delivery requirements of the Securities Act in connection with the resale of the exchange notes.

Record Date
 
There will be no fixed record date for determining registered holders of original notes entitled to participate in the exchange offer.

Expiration Date
 
The exchange offer will expire at 5:00 p.m., New York City time, on , 2002, unless we decide to extend the expiration date. We do not currently intend to extend the expiration of the exchange offer.

Withdrawal Rights
 
You may withdraw the tender of your original notes at any time before the expiration date of the exchange offer.

 
 
 
 
 

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Conditions to the Exchange Offer
 
The exchange offer is subject to customary conditions, which we may waive. Please refer to the section in this prospectus entitled "The Exchange Offer—Conditions to the Exchange Offer."

Procedures for Tendering Original Notes
 

If you wish to tender your original notes for exchange in this exchange offer, you must transmit to the exchange agent on or before the expiration date either:

 
 
•
 
an original or a facsimile of a properly completed and duly executed letter of transmittal, which accompanies this prospectus, together with your original notes and any other documentation required by the letter of transmittal, at the address provided on the cover page of the letter of transmittal; or

 
 
•
 
if the original notes you own are held of record by The Depositary Trust Company, or DTC, in book-entry form and you are making delivery by book-entry transfer, a computer-generated message transmitted by means of the Automated Tender Offer Program System of DTC, or ATOP, in which you acknowledge and agree to be bound by the terms of the letter of transmittal and which, when received by the exchange agent, forms a part of a confirmation of book-entry transfer. As part of the book-entry transfer, DTC will facilitate the exchange of your original notes and update your account to reflect the issuance of the exchange notes to you. ATOP allows you to electronically transmit your acceptance of the exchange offer to DTC instead of physically completing and delivering a letter of transmittal to the exchange agent.

 
 
In addition, you must deliver to the exchange agent on or before the expiration date:

 
 
•
 
if you are effecting delivery by book-entry transfer, a timely confirmation of book-entry transfer of your original notes into the account of the exchange agent at DTC; or

 
 
•
 
if necessary, the documents required for compliance with the guaranteed delivery procedures.

Special Procedures for Beneficial Owners
 

If you are the beneficial owner of book-entry interests and your name does not appear on a security position listing of DTC as the holder of the book-entry interests, or if you hold original notes registered in the name of a broker, dealer, commercial bank, trust company or other nominee, you should contact the person in whose name your book-entry interests or original notes are registered promptly if you wish to tender original notes. Please refer to the section in this prospectus entitled, "The Exchange Offer—Procedures for Tendering Original Notes."

 
 
 
 
 

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Guaranteed Delivery Procedures
 
If you wish to tender your original notes and you cannot complete the procedure for book-entry transfer on time, you may tender your original notes according to the guaranteed delivery procedures described in this prospectus under the heading "The Exchange Offer—Procedures for Tendering Original Notes."

Effect on Holders of Original Notes
 

If you are a holder of original notes and you do not tender your original notes in the exchange offer, you will continue to hold your original notes and will be entitled to all the rights and subject to all the limitations applicable to the original notes in the indenture.

 
 
The trading market for original notes could be adversely affected if some but not all of the original notes are tendered and accepted in the exchange offer.

Consequences of Failure to Exchange Your Original Notes
 

All untendered original notes will remain subject to the restrictions on transfer provided for in the original notes and in the indenture. Generally, the original notes that are not exchanged for exchange notes pursuant to the exchange offer will remain restricted securities and may not be offered or sold, unless registered under the Securities Act, except pursuant to an exemption from, or in a transaction not subject to, the Securities Act and applicable state securities laws. Other than in connection with the exchange offer, we do not currently anticipate that we will register the original notes under the Securities Act.

 
 
Because we anticipate that most holders of the original notes will elect to exchange their original notes, we expect that the liquidity of the markets, if any, for any original notes remaining after the completion of the exchange offer will be substantially limited.

Use of Proceeds; Expenses
 
We will not receive any cash proceeds from the exchange offer. We will pay all of our expenses related to the exchange offer.

Federal Income Tax Consequences
 
The exchange of the original notes for exchange notes will not be a taxable event to you for U.S. federal income tax purposes. Please refer to the section in this prospectus entitled "Certain U.S. Federal Tax Considerations."

Exchange Agent
 
U.S. Bank National Association is serving as exchange agent in the exchange offer. Please refer to the section in this prospectus entitled "The Exchange Offer—Exchange Agent." You should direct questions and requests for assistance, requests for additional copies of this prospectus or of the letter of transmittal and requests for the notice of guaranteed delivery, as well as deliver all executed letters of transmittal and any other required documents, to the exchange agent at the addresses listed below:

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By Mail
U.S. Bank National Association
180 E. Fifth Street
St. Paul, MN 55101		   By Overnight Carrier
U.S. Bank National Association
180 E. Fifth Street
St. Paul, MN 55101		   By Hand
U.S. Bank National Association
180 E. Fifth Street
St. Paul, MN 55101

Attn: Specialized Finance Group
4th Floor
 
Attn: Specialized Finance Group
4th Floor
 
Attn: Specialized Finance Group
4th Floor
Bond Drop Window

By Facsimile Transmission

(For Eligible Institutions Only)
(651) 244-1537

To confirm by Telephone
(800) 934-6802

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THE EXCHANGE NOTES

        The summary below describes the principal terms of the exchange notes. Certain of the terms and conditions described below are subject to important limitations and exceptions. The "Description of Notes" section of this prospectus contains a more detailed description of the terms and conditions of the exchange notes.

Issuer   Oregon Steel Mills, Inc., a Delaware corporation.

Securities Offered
 
$305,000,000 aggregate principal amount of 10% First Mortgage Notes due July 15, 2009.

Maturity Date
 
July 15, 2009.

Interest Payment Dates
 
January 15 and July 15 of each year, beginning January 15, 2003.

Optional Redemption
 
We may redeem the notes, in whole or in part, at our option at any time on or after July 15, 2006, at the redemption prices listed in "Description of Notes—Optional Redemption," plus accrued and unpaid interest to the date of redemption.

 
 
In addition, before July 15, 2005, we may, at our option, use the net cash proceeds from one or more public equity offerings to redeem up to 35% of the original aggregate principal amount of the notes at a price equal to 110% of the principal amount thereof, plus accrued and unpaid interest to the date of redemption.

Sinking Fund
 
None.

Ranking
 
•
 
The notes will be our senior secured obligations and, except as described in the following two paragraphs, will be senior in right of payment to all of our and the subsidiary guarantors' existing and future subordinated debt and equal in right of payment with all of our and the subsidiary guarantors' existing and future senior debt.

 
 
•
 
Because of the security interests in the note collateral described below, the notes will be effectively senior to all of our and the subsidiary guarantors' existing and future indebtedness to the extent of the value of the note collateral.

 
 
•
 
The notes will be effectively subordinated to all of our and the subsidiary guarantors' indebtedness (including our new credit facility) secured by assets other than the note collateral (to the extent of the value of such assets) and to indebtedness of any of our subsidiaries that is not a guarantor of the notes.

 
 
At June 30, 2002, after giving effect to the sale of the original notes and the application of the net proceeds therefrom as described in "Use of Proceeds" (including the discharge and redemption of all of our outstanding 11% First Mortgage Notes due 2003 and the refinancing of our previous revolving credit facility) as if such transactions had occurred on that date and assuming no borrowings under our new credit facility, we would have had outstanding an aggregate of $311.7 million of consolidated debt (including current portion of $9.9 million). The notes would have been effectively subordinated in right of payment to $0.5 million of indebtedness of our non-guarantor subsidiaries and pari passu (not taking into account the note collateral) with $9.9 million of such indebtedness.

 
 
 
 
 

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Guarantees
 
The notes will be unconditionally guaranteed on a senior secured basis by two of our subsidiaries, CF&I Steel, L.P., a Delaware limited partnership, and New CF&I, Inc., a Delaware corporation. The guarantees, except as described in the following two sentences, will be senior in right of payment to all of the subsidiary guarantors' existing and future subordinated debt and equal in right of payment with all of the subsidiary guarantors' existing and future senior debt. Because of the security interests in the note collateral described below, the guarantees will be effectively senior to all of the subsidiary guarantors' existing and future indebtedness to the extent of the value of the note collateral. The guarantees will be effectively subordinated to all of the subsidiary guarantors' indebtedness (including their obligations under our new credit facility) secured by assets other than the note collateral (to the extent of the value of such assets). In the aggregate, our non-guarantor subsidiaries accounted for approximately 6.8% of our consolidated total assets as of June 30, 2002 and approximately 9.5% and 3.1% of our consolidated EBITDA and consolidated net income, respectively, for the twelve months ended June 30, 2002. See "Description of Notes—Guarantees."

Security
 
The notes will be secured by a lien on substantially all of the buildings, fixtures and equipment that comprise our mills located in Portland, Oregon and Napa, California, together with the real property on which the buildings are located. The guarantee of CF&I Steel, L.P. will be secured by a lien on substantially all of the buildings, fixtures and equipment which comprise the mill located in Pueblo, Colorado, together with the real property on which the buildings are located. We and our subsidiary guarantors are required to grant a first priority lien on such property and assets to secure our obligations under the notes and the obligations of our subsidiary guarantors under the guarantees, respectively. The collateral for the notes and the guarantees does not include any partnership interests in CF&I Steel, L.P. or Camrose Pipe Company or any capital stock in New CF&I. New CF&I will not pledge any collateral for its guarantee. See "Description of Notes—Security."

Change of Control
 
If we experience a change of control, we must offer to repurchase all of the Notes at a price of 101% of the principal amount thereof, plus accrued and unpaid interest to the date of repurchase. See "Description of Notes—Repurchase at the Option of Holders—Change of Control."

 
 
 
 
 

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Asset Sale Offer
 
If we sell assets, we may have to use the proceeds to offer to purchase some of the notes at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest to the date of repurchase.

Certain Covenants
 
The indenture governing the notes contains covenants that, among other things, will limit our ability and the ability of any of the subsidiary guarantors to, among other things:

 
 
•
 
pay dividends, redeem stock or make other distributions or restricted payments;

 
 
•
 
incur indebtedness or issue preferred shares;

 
 
•
 
make certain investments;

 
 
•
 
create liens;

 
 
•
 
enter into sale and leaseback transactions;

 
 
•
 
agree to payment restrictions affecting the subsidiary guarantors;

 
 
•
 
consolidate or merge;

 
 
•
 
sell or otherwise transfer or dispose of assets, including equity interests of our subsidiaries;

 
 
•
 
enter into transactions with our affiliates;

 
 
•
 
designate our subsidiaries as unrestricted subsidiaries; and

 
 
•
 
use the proceeds of permitted sales of our assets.

 
 
These covenants will be subject to important exceptions and qualifications, which are described under "Description of Notes—Certain Covenants."

Trustee
 
The trustee under the indenture governing the rates is U.S. Bank, National Association.

No Public Market
 
The notes are a new issue of securities and will not be listed on any securities exchange or included in any automated quotation system. The initial purchaser has advised us that it intends to make a market in the notes. The initial purchaser is not obligated, however, to make a market in the notes, and any such market-making may be discontinued by the initial purchaser in its discretion at any time without notice.

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RISK FACTORS

        Holders of the original notes should carefully consider the following risk factors, as well as all other information set forth in this prospectus, before tendering their original notes in the Exchange Offer. The risk factors set forth below (other than "Risks Relating to the Exchange Offer") are generally applicable to the original notes as well as the exchange notes.


RISKS RELATING TO THE EXCHANGE OFFER

        Because there is no public market for the exchange notes, you may not be able to resell your exchange notes.

        The exchange notes will be registered under the Securities Act, but will constitute a new issue of securities with no established trading market, and there can be no assurance as to:

        If a trading market were to develop, the exchange notes might trade at higher or lower prices than their principal amount or purchase price, depending on many factors, including prevailing interest rates, the market for similar notes and our financial performance.

        We understand that the initial purchaser presently intends to make a market in the exchange notes. However, the initial purchaser may stop its market-making activities at any time. Any market-making activity will be subject to the limits imposed by the Securities Act and the Securities Exchange Act of 1934, or the Exchange Act, and may be limited during the exchange offer or the pendency of an applicable shelf registration statement. In addition, the liquidity of the trading market in the exchange notes, and the market price quoted for the exchange notes, may be adversely affected by changes in the overall market for high-yield securities and by changes in our financial performance or prospects or in the prospects for companies in our industry generally. As a result, an active trading market may not develop for the exchange notes.

        In addition, any holder of original notes who tenders in the exchange offer for the purpose of participating in a distribution of the exchange notes may be deemed to have received restricted securities, and if so, will be required to comply with the registration and prospectus delivery requirements of the Securities Act in connection with any resale transaction. For a description of these requirements, see "Exchange Offer."

        Your original notes will not be accepted for exchange if you fail to follow the exchange offer procedures and, as a result, your original notes will continue to be subject to existing transfer restrictions and you may not be able to sell your original notes.

        We will not accept your original notes for exchange if you do not follow the exchange offer procedures. We will issue exchange notes as part of this exchange offer only after a timely receipt of your original notes, a properly completed and duly executed letter of transmittal or computer generated message from DTC and all other required documents. Therefore, if you want to tender your original notes, please allow sufficient time to ensure timely delivery. If we do not receive your original notes, letter of transmittal and other required documents by the expiration date of the exchange offer, we will not accept your original notes for exchange. We are under no duty to give notification of defects or irregularities with respect to the tenders of original notes for exchange. If there are defects or irregularities with respect to your tender of original notes, we intend not to accept your original notes for exchange.

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        If you do not exchange your original notes, your original notes will continue to be subject to the existing transfer restrictions and you may not be able to sell your original notes.

        We did not register the original notes, nor do we intend to do so following the exchange offer. Original notes that are not tendered will therefore continue to be subject to the existing transfer restrictions and may be transferred only in limited circumstances under the securities laws. If you do not exchange your original notes, you will lose your right to have such original notes registered under the federal securities laws. As a result, if you hold original notes after the exchange offer, you may not be able to sell your original notes.


RISKS RELATED TO OUR SUBSTANTIAL DEBT

Our substantial amount of debt could materially and adversely affect our financial health and prevent us from fulfilling our obligations under the notes and our other outstanding debt.

        After giving effect to the sale of the original notes and the application of the net proceeds therefrom as described in "Use of Proceeds" (including the discharge and redemption of all of the outstanding 11% First Mortgage Notes due 2003 and the refinancing of our previous revolving credit facility) and assuming no borrowings under our new credit facility, as of June 30, 2002, we would have had $311.7 million of total debt (including current portion of $9.9 million), $851.2 million of total assets and $304.3 million of total stockholders' equity, and our total debt as a percentage of total capitalization would have been approximately 48.7%.

        This debt, the subsidiary guarantees and the related security interests in our assets and the assets of the subsidiary guarantors could have material adverse consequences for you and for us, including but not limited to:

        If we are unable to satisfy our obligations under the notes or our other debt, it could result in all of the notes and our other debt becoming immediately due and payable and could permit our lenders to foreclose on our assets securing the debt.

        Subject to the terms of the notes and our other debt, we may be able to incur additional debt in the future. If we incur additional debt, the related risks that we now face could increase.

We may not be able to generate sufficient cash flow to service our debt.

        We may not be able to generate sufficient cash flow to service our debt, to repay the notes or our other debt when due or to meet unanticipated capital needs or shortfalls in our projections. We plan to service interest payments on our debt with cash from operations. Our cash from operations, however, may not be sufficient to repay the principal of the notes or our other debt when due. After giving

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effect to the sale of the original notes and the application of the net proceeds therefrom as described in "Use of Proceeds" (including the discharge and redemption of all of the outstanding 11% First Mortgage Notes due 2003 and the refinancing of our previous revolving credit facility) and assuming no borrowings under our new credit facility, for the twelve months ended June 30, 2002, our ratio of total debt to EBITDA would have been approximately 3.2x, our ratio of EBITDA to interest expense would have been approximately 2.5x and our ratio of earnings to fixed charges would have been approximately 1.3x.

        Our ability to generate sufficient cash flow to satisfy our obligations will depend on our future performance, which is subject to many economic, political, competitive, regulatory and other factors that are beyond our control. In addition, we face potential costs and liabilities associated with environmental compliance and remediation issues and the labor dispute at the Pueblo Mill. Please refer to the risk factors on pages 28 through 32 under "Risks Related to Our Business" for a description of risks related to those matters. If cash from operations is not sufficient to satisfy our obligations, we may need to seek additional financing in the debt or equity markets, refinance the notes and our other debt, sell selected assets or reduce or delay planned activities and capital expenditures. Any such financing, refinancing or sale of assets might not be available on economically favorable terms, if at all. If we cannot meet our debt service requirements an event of default would occur under the indenture and our other debt instruments. This could result in all of the notes and our other debt becoming immediately due and payable and could permit our lenders to foreclose on our assets securing the debt.


RISKS RELATED TO THE NOTES

The fair market value of the collateral securing the notes may not be sufficient to pay the amounts owed under the notes. As a result, you may not receive full payment on your notes following an event of default.

        The proceeds of any sale of collateral following an event of default with respect to the notes may not be sufficient to satisfy, or may be substantially less than, amounts due on the notes. No appraisal of any of the collateral has been prepared in connection with this offering. The consolidated book value (net of depreciation) of the real property and existing machinery and equipment at the Portland, Pueblo and Napa facilities as of June 30, 2002 was approximately $521.3 million.

        The value of the collateral in the event of a liquidation will depend upon market and economic conditions, the availability of buyers and similar factors. The collateral does not include contracts, agreements, licenses (including software licenses) and other rights that by their express terms prohibit the assignment thereof or the grant of a security interest therein. Some of these may be material to us or to the subsidiary guarantors or may be necessary to operate our steel making, finishing or other production facilities, and such exclusion could have a material adverse effect on the value of the collateral. By its nature, some or all of the collateral will be illiquid and may have no readily ascertainable market value.

        The collateral may not be saleable or, if saleable, there may be substantial delays in its liquidation. To the extent that liens, rights and easements granted to other parties encumber assets located on property owned by us or any subsidiary guarantor, those parties have or may exercise rights and remedies with respect to the property subject to their liens that could adversely affect the value of the collateral located at the site and the ability of the trustee under the indenture or the holders of the notes to realize or foreclose on collateral at the site.

        In addition, under the intercreditor agreement between the trustee and the agent for the lenders under the new credit facility, if action has been taken to enforce the rights of holders of the notes with respect to the collateral and the trustee has obtained possession and control of the collateral, the lenders' agent may enter upon our property or the property of any of the subsidiary guarantors for a period of up to 120 days in order to collect accounts receivable and remove, sell or otherwise dispose

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of collateral securing the new credit facility and may also store collateral securing the new credit facility on our property or any property of the subsidiary guarantors for such period. This right of the lenders' agent to enter the property could delay liquidation of the collateral securing the notes.

        If the proceeds of any sale of collateral are not sufficient to repay all amounts due on the notes, the holders of the notes (to the extent not repaid from the proceeds of the sale of the collateral), as discussed below, would have only an unsecured claim against our and our subsidiary guarantors' remaining assets.

State law may limit the ability of the trustee and the noteholders to foreclose on the collateral securing the notes.

        The notes and the guarantees are secured by, among other things, liens on real property and improvements located in California, Oregon and Colorado. The laws of California, Oregon and Colorado may limit the ability of the trustee and the noteholders to foreclose on the real property collateral located in those states. The notes, because they will be secured in part by liens on certain real property (including improvements) at the Napa Pipe Mill, which is located in California, may be subject to California's "one form of action rule" and "anti-deficiency laws," among other California laws applicable to real property collateral. Section 726 of the California Code of Civil Procedure provides that "[t]here can be but one form of action for the recovery of any debt or the enforcement of any right secured by mortgage upon real property." Under judicial decisions construing that statute, a creditor whose claim is secured by a mortgage or deed of trust (i) must first exhaust all of its real property collateral in California if it wishes to preserve a claim against the debtor for a deficiency and (ii) may be required to realize upon its real property collateral before it may exercise other remedies. If the secured creditor obtains a personal judgment on the debt before exhausting its real property collateral in California, the secured creditor may lose its lien on the real property collateral located in California. Similarly, if the secured creditor employs another form of action in an attempt to realize upon assets of the debtor, such as exercising a right of set-off against funds of the debtor that are on deposit with the secured creditor, the secured creditor may lose both its lien on the real property located in California and its right to obtain a judgment for the portion of the obligation remaining unpaid after such action.

        Section 580d of the California Code of Civil Procedure provides that "[n]o judgment shall be rendered for any deficiency upon a note secured by a deed of trust or mortgage upon real property . . . in any case in which the real property . . . has been sold by the mortgagee or trustee under power of sale contained in the mortgage or deed of trust." Accordingly, if a secured creditor wishes to preserve its claim against the debtor for any deficiency, it may be required to first proceed by judicial foreclosure (rather than a non-judicial foreclosure sale) against the real property collateral located in California. Judicial foreclosure can take considerably longer than a non-judicial foreclosure sale. Under Section 726 of the California Code of Civil Procedure, the amount of any deficiency will, in general, be based upon the amount of secured debt less an amount equal to the court's determination of the fair value of the real property collateral (and not the amount realized upon the sale of that collateral in the foreclosure proceeding) unless the amount realized in such foreclosure proceeding is greater than such fair value.

        Under Oregon law a creditor holding a trust deed on real property (such as the trust deed which we will grant on certain real property and improvements at the Portland Mill to secure the notes) may enforce the lien of the trust deed through a judicial foreclosure or a non-judicial sale. Oregon law provides, however, that if the creditor proceeds by non-judicial sale, the creditor may not thereafter enforce any unpaid portion of the debt as a personal liability of the debtor, although the creditor would be entitled to proceed against any guarantor of such indebtedness or any other collateral pledged as security for the debt. Accordingly, any election by the trustee to proceed by non-judicial sale of real property collateral located in Oregon (such as the real property and improvements at the Portland

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Mill) could preclude recourse by the trustee or the holders of the notes against us as unsecured creditors or otherwise. Judicial foreclosure can take considerably longer than a non-judicial sale.

        The applicability of the foregoing provisions of California or Oregon law to real property located in other states is uncertain. A California court could take the position that legal proceedings brought against us or a subsidiary guarantor in Oregon, Colorado or another state could violate the one form of action rule and anti-deficiency laws of California, with the consequences described above. Similarly, an Oregon court could take the position that a non-judicial sale of real property owned by us or a subsidiary guarantor in California, Colorado or another state could preclude the trustee or the holders of the notes from proceeding against us or a subsidiary guarantor for any deficiency as an unsecured creditor. In the event that a California or Oregon court were to take either of these positions, it could have a material adverse effect on the ability of holders to collect amounts due under the notes following an event of default under the indenture.

        Under Colorado law, a deed of trust to a public trustee covering real property (including improvements) located in Colorado (such as the deed of trust which CF&I will grant on certain property and improvements at the Pueblo Mill to secure its guarantee) may be foreclosed through a sale by the public trustee only if it secures an "evidence of debt." We do not believe that there has been any definitive judicial interpretation of what constitutes an "evidence of debt" under the applicable Colorado statute and, as a result, CF&I's guarantee may not be found to constitute such an "evidence of debt" and the deed of trust on the real property, buildings, improvements and fixtures at the Pueblo Mill may not be able to be foreclosed through a sale by a public trustee following an event of default under the indenture. If such deed of trust cannot be foreclosed through sale by a public trustee, foreclosure must be made through a judicial foreclosure, which can take considerably longer than the sale by a public trustee. To seek to address the foregoing concerns, CF&I has delivered to the trustee a promissory note evidencing its obligations under its guarantee; however, the promissory note may not be found to constitute an "evidence of debt" within the meaning of the applicable Colorado statute.

        In addition, under Colorado law, in order to foreclose a deed of trust to a public trustee which secures an "evidence of debt," the holder of the debt secured thereby must file with the public trustee, among other things, the original "evidence of debt." As a result, if the notes (rather than, or in addition to, the CF&I promissory note) are deemed to constitute the "evidence of debt," the statute would require holders of the notes to deliver the original notes (or a corporate surety bond in lieu thereof) in order to foreclose the deed of trust granted by CF&I on the real property and improvements at the Pueblo Mill. To seek to address the foregoing concern, the notes will initially be represented by one or more global notes which the trustee could present to the public trustee in connection with a foreclosure of the deed of trust.

        The noteholders and the trustee also may be limited in their ability to enforce a breach of the "no liens" covenant. Some decisions of the California and Oregon state courts have placed limits on a lender's ability to accelerate debt as a result of a breach of this type of covenant. Under these decisions, a lender seeking to accelerate debt secured by real property upon a breach of covenants prohibiting the creation of certain junior liens or leasehold estates may need to demonstrate that enforcement is reasonably necessary to protect against impairment of the lender's security or to protect against an increased risk of default. Although the foregoing court decisions may have been preempted, at least in part, by certain federal laws, the scope of such preemption, if any, is uncertain. Accordingly, a California or Oregon court could prevent the trustee and the holders of notes from declaring a default and accelerating the notes by reason of a breach of this covenant, which could have a material adverse effect on the ability of holders to enforce the covenant.

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Not all of our assets are pledged as collateral for the notes and not all of our subsidiaries are guarantors; therefore, if the notes are undersecured, your right to receive payments on the notes will be effectively subordinated to some of our and our subsidiaries' other liabilities, including our new credit facility, to the extent of the collateral securing these other liabilities.

        The notes and the related guarantees are secured by substantially all of the buildings, fixtures and equipment that comprise the Portland Mill, the Pueblo Mill and the Napa Pipe Mill, together with the real property on which the buildings are located. The collateral securing the notes and the guarantees, however, do not include, among other things, the following (the "excluded assets"):

        The notes and the guarantees are effectively subordinated to all of our other existing and future liabilities to the extent that any of these excluded assets are collateral for those other liabilities. Each guarantee likewise will be effectively subordinated to all other existing and future liabilities of the respective subsidiary guarantors to the extent that any excluded assets are collateral for those other liabilities. In particular, the notes and the guarantees are effectively subordinated to $75 million principal amount of debt under our new credit facility to the extent of the collateral securing that debt. This collateral includes accounts receivable and inventory and related books and records owned by us, New CF&I and CF&I, intercompany debt and the capital stock of or other equity interests in our subsidiaries. Borrowings under our new credit facility may in the future be secured by similar collateral owned by our other subsidiaries and the amounts borrowed may be increased from time to time. In addition, the indenture permits us and the subsidiary guarantors to create liens on other assets, including liens securing purchase money debt, and the notes and the guarantees also would be effectively subordinated to that purchase money debt and other obligations secured by such permitted liens. As a result, upon any distribution to our creditors or the creditors of any subsidiary guarantors in bankruptcy, liquidation, reorganization or similar proceedings, or following acceleration of our debt or an event of default under that debt, the lenders under our new credit facility, our purchase money debt and any of our or our subsidiary guarantors' other secured debt will be entitled to be repaid in full from the proceeds of the assets securing such debt before any payment is made to you from such proceeds, and you would share pari passu with such creditors in any remaining proceeds.

        Some of our subsidiaries, including Camrose, did not guarantee the notes or pledge any collateral to secure the notes or the guarantees. The notes and the guarantees are effectively subordinated to all existing and future liabilities of these non-guarantor subsidiaries. As a result, upon any distribution to the creditors of any non-guarantor subsidiary in bankruptcy, liquidation, reorganization or similar

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proceedings, or following acceleration of our debt or an event of default under that debt, those creditors would be entitled to be repaid in full before any payment is made to you, and you would share pari passu with our other creditors in any remaining proceeds.

        In the aggregate, our non-guarantor subsidiaries accounted for approximately 6.8% of our consolidated total assets as of June 30, 2002 and approximately 9.5% and 3.1% of our consolidated EBITDA and consolidated net income, respectively, for the twelve months ended June 30, 2002. After giving effect to the sale of the original notes and the application of the net proceeds as described in "Use of Proceeds" (including the discharge and redemption of all of the outstanding 11% First Mortgage Notes due 2003 and the refinancing of our previous revolving credit facility) and assuming no borrowings under our new credit facility, as of June 30, 2002, our non-guarantor subsidiaries would have had an aggregate of $0.5 million of total long-term debt (none of which would be classified as short-term) and $26.1 million of other liabilities. This total long-term debt represents US$0.5 million of borrowings by Camrose under the Can$15 million Camrose credit facility which is secured by Camrose's assets. Furthermore, New CF&I is a holding company whose only material assets consist of the general partnership interest in CF&I and the capital stock of Colorado and Wyoming Railway Company, a subsidiary, none of which will be pledged as collateral for its guarantee. As a result, the guarantee of New CF&I will initially not be secured by any assets and will only be secured if and to the extent that New CF&I acquires any assets (other than excluded assets) in the future.

        The notes and the guarantees will rank pari passu in right of payment with all other existing and future senior debt of the Company and the subsidiary guarantors, including borrowings under our new credit facility, with respect to proceeds from assets not constituting collateral for the notes or for such other debt. After giving effect to the sale of the original notes and the application of the net proceeds therefrom as described in "Use of Proceeds" (including the discharge and redemption of all of the outstanding 11% First Mortgage Notes due 2003 and the refinancing of our previous revolving credit facility) and assuming no borrowings under our new credit facility, as of June 30, 2002, we and the subsidiary guarantors would have had, in addition to the notes and our new credit facility and excluding intercompany liabilities, no long-term debt and $194.0 million of other liabilities.

        After providing for all senior claims and all pari passu claims, there may not be sufficient assets available to satisfy our obligations and the obligations of the subsidiary guarantors under the notes and the guarantees. An event of default under or acceleration of our other senior secured debt also may prohibit us and the subsidiary guarantors from paying the notes or the guarantees.

We conduct substantial operations through our subsidiaries, and therefore our ability to make payments on the notes and service our other debt depends on cash flow from our subsidiaries.

        We conduct substantial operations through our subsidiaries, particularly CF&I and Camrose. Consequently, we will depend on distributions or other intercompany transfers of funds from our subsidiaries to make payments on the notes and service our other debt. Distributions and intercompany transfers to us from our subsidiaries will depend on:

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        The operating results of our subsidiaries at any given time may not be sufficient to make distributions or other payments to us and any distributions may not be adequate to pay principal and interest and any other amounts on the notes or our other debt when due.

        Our subsidiaries are separate and distinct legal entities and, except for the subsidiary guarantors, have no obligation, contingent or other, to pay any amounts due on the notes or our other debt or to make any funds available to make these payments. In addition, some of our subsidiaries (including CF&I, New CF&I and Camrose) are not wholly owned. As a result, we may owe a fiduciary duty to the holders of minority interests in those subsidiaries and may therefore be unable to exercise unrestricted control of such subsidiaries.

The agreements governing the notes and our other debt impose restrictions on our business.

        The agreement governing our new credit facility and the indenture governing the notes contain covenants imposing financial and operating restrictions on our business. These restrictions may affect our ability to operate our business and may limit our ability to take advantage of potential business opportunities as they arise. These restrictions limit our ability to, among other things:

        Our new credit facility also requires us to meet a number of financial ratios and tests. Our ability to comply with these financial covenants and the restrictions described above may be affected by events beyond our control, including prevailing economic, financial and industry conditions. The breach of any of these covenants or restrictions could result in an event of default under the indenture governing the notes and under our new credit facility. An event of default under our debt agreements would permit some of our lenders to declare all amounts borrowed from them to be due and payable and could permit them to foreclose on our assets securing such debt.

A court could cancel the guarantees of the notes by our subsidiaries under fraudulent transfer law.

        CF&I and New CF&I have guaranteed the notes, and each subsidiary guarantor has granted a security interest in its material assets to secure its guarantee. Although the guarantees provide you with a direct claim against the assets of the subsidiary guarantors, under federal bankruptcy law and comparable provisions of state fraudulent transfer laws, in certain circumstances a court could cancel a guarantee and order the return of any payments made thereunder to the subsidiary guarantor or to a fund for the benefit of its creditors.

        A court might take these actions if it found, among other things, that when the subsidiary guarantor incurred the debt evidenced by its guarantee (i) it received less than reasonably equivalent

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value or fair consideration for the incurrence of the guarantee and (ii) that any one of the following conditions was satisfied:

        In applying the above factors, a court would likely find that a subsidiary guarantor did not receive fair consideration or reasonably equivalent value for its guarantee, except to the extent that it benefited directly or indirectly from the notes' issuance. The determination of whether a subsidiary guarantor was or was rendered "insolvent" when it entered into its guarantee will vary depending on the law of the jurisdiction being applied. Generally, an entity would be considered insolvent if the sum of its debts (including contingent or unliquidated debts) is greater than all of its property at a fair valuation or if the present fair salable value of its assets is less than the amount that will be required to pay its probable liability on its existing debts, including contingent or unliquidated debts, as they become absolute and matured.

        If a court canceled a subsidiary guarantor's guarantee, you would no longer have a claim against that subsidiary guarantor. Our assets and the assets of the remaining subsidiary guarantor may not be sufficient to pay amounts then due under the notes.

We may be unable to repurchase the notes upon a change of control.

        Upon the occurrence of specific change of control events, we will be required to offer to repurchase your notes at 101% of their principal amount, plus accrued and unpaid interest to the date of repurchase. The lenders under our new credit facility will have a similar right to be repaid upon a change of control. Any of our future debt agreements also may contain a similar provision. Our ability to pay cash to the holders of the notes in connection with a repurchase will be limited by our then existing financial resources. Accordingly, it is possible that we will not have sufficient funds at the time of the change of control to make the required repurchase of notes. The terms of our new credit facility also will limit our ability to purchase your notes until all debt under our new credit facility is paid in full. Any of our future debt agreements may contain similar restrictions. Accordingly, it is possible that restrictions in our new credit facility will not allow these repurchases. If we fail to repurchase any notes submitted in a change of control offer, it would constitute an event of default under the indenture which would, in turn, constitute an event of default under our new credit facility and could constitute an event of default under our other debt, even if the change in control itself would not cause a default.

There is currently no public market for the notes, and an active trading market may not develop for the notes.

        The notes are a new issue of securities and there is no existing market for the notes. An active market may not develop for the notes and any market that may develop may not be liquid. If an active market does not develop, the market price and liquidity of the notes may be adversely affected. Future trading prices of the notes will depend on many factors, including, among other things, prevailing interest rates, our operating results and the market for similar securities. Historically, the market for high-yield debt has been subject to disruptions that have caused substantial fluctuations in the prices of these securities. The market for the notes may be subject to these disruptions, and may be subject to this volatility, either of which could have an adverse effect on the price and liquidity of the notes. The initial purchaser has advised us that it presently intends to make a market in the notes, although it is under no obligation to do so and may discontinue any market-making activities at any time without

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notice. We do not intend to apply for listing of the notes on any securities exchange or for quotation of the notes in any automated dealer quotation system, but the notes have been designated for trading in The Portal Market. See "Description of Notes—Registration Rights, Exchange Offer".

The trustee and holders of the notes may face potential "owner or operator" environmental liability as a result of a foreclosure on the collateral securing the notes.

        The notes and the guarantee of CF&I are secured by liens on real property. Under the federal Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended ("CERCLA"), a secured lender, in certain circumstances, may be held to have an obligation to remediate or may be held liable for the costs of remediating releases or threatened releases of hazardous substances at a mortgaged property. The costs of environmental remediation are often substantial. In general, secured lenders are excluded from CERCLA's definition of "owner or operator," particularly in light of recent amendments to CERCLA specifically setting forth "safe harbor" provisions for lenders and other secured creditors. State laws, in many cases, have followed suit, including California.

        Under the indenture, the trustee may, prior to taking certain actions, request that holders of notes provide an indemnification against its costs, expenses and liabilities. It is possible CERCLA (or analogous) cleanup costs could become a liability of the trustee and cause a loss to any holder of notes that provided an indemnification. In addition, such holders may act directly rather than through the trustee, in specified circumstances, in order to pursue a remedy under the Indenture. If holders of notes exercise that right, they could be deemed to be lenders that are subject to the risks discussed above if they act outside the safe harbor provisions of the statutes.

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RISKS RELATING TO OUR BUSINESS

Until recently, the steel industry had been experiencing weak demand for products, excess capacity and low prices, and if those conditions return we could be required to reduce prices for our products and our profitability could be adversely impacted.

        Recently implemented import protection measures, improving conditions in the manufacturing economy and reduced U.S. steel production capacity have significantly reduced domestic oversupply and excess capacity, and have resulted in increased prices for steel products in the U.S. In recent years, however, the steel industry had faced weakened demand, overcapacity and low prices for products, and these conditions caused a significant number of companies in the steel industry to file for bankruptcy, including some that are substantially larger than Oregon Steel. Excess supply continues to be a problem globally, as worldwide steel production remains high.

        If the domestic steel industry again experiences weak demand and overcapacity, this will further intensify competitive pricing and result in additional pressures on capacity utilization and profit margins. In addition, service centers, which play a significant role in determining steel prices in the spot market, could look to liquidate inventories in the face of weakened demand, thereby causing prices to drop quickly and sharply. Price decreases also could result from the liquidation of inventory by bankrupt steel manufacturers. If the steel industry experiences weak demand and overcapacity in the future, the price of our steel products will likely decrease and our ability to realize our target profit margins will be impaired.

We service cyclical industries and do not generally have long-term contracts with our customers, and therefore any downturn in these industries could reduce our revenue and profitability.

        We sell many products to cyclical industries, such as the rail transportation, construction, capital equipment, oil and gas and durable goods segments. Their demand for our products changes as a result of economic conditions, energy prices or other factors beyond our control. For example, the demand for our rail products is impacted by seasonal demand, as dictated by the major railroads' procurement schedules. Demand for oil country tubular goods, which include both seamless pipe and ERW pipe, can be subject to seasonal factors, particularly for sales to Canadian customers. Overall demand for these goods also is subject to significant fluctuations due to the volatility of the oil and gas prices and North American drilling activities, which have generally declined since June 2001, as well as other factors such as competition from imports.

        We generally do not have long-term contracts with our customers. We do have contracts ranging from one year to three years with the major railroads, but these customers may not take delivery of their projected requirements. In addition, many of our contracts, such as our contract to supply 370,000 tons of large-diameter pipe to Kern River Gas Transmission Co., may be terminated by the customer before delivery of the full contracted amount. Our large diameter pipe contracts, however, generally subject a customer to significant penalties for early termination. Failure of the railroads to take delivery of their full projected requirements or early termination of the Kern River contract could reduce our sales or force us to change to a less profitable product mix, either of which could have a material adverse effect on our business.

        Our product mix and levels of production and sales therefore are subject to fluctuations and curtailments in the demands of our customers for our products. For example, we made the decision to shut down our seamless pipe operation from May 1999 until September 2000 and again from November 2001 until April 2002 because of weakened demand in the oil and gas sector. Changes in our product mix can materially affect our operating results due to variation in selling prices and profit margins of products. For example, we experienced a decline in average selling price and total sales in 2000 compared to 1999 due in part to the shift in product mix from higher priced welded pipe products to lower priced plate and coil products. As a result of the volatility of the industries we serve, we may

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have difficulty increasing or maintaining our sales and profitability if we are not able to divert sales of our products to customers in other industries when one or more of our customers' industries is experiencing a decline.

We face significant competition in our principal markets, and increased competition could reduce our gross margins and net income.

        The principal markets that we serve are highly competitive. We compete with other steel manufacturers primarily on the basis of product quality, price and responsiveness to customer needs. Many of our competitors are larger and have substantially greater capital resources, more modern technology and lower labor and raw material costs than we do. Consolidation of our competitors and the purchase by our competitors of assets of producers that have exited the industry could further increase the size and resources of these competitors. In addition, competition from foreign producers has had and may in the future have a significant negative impact on our operations, depending upon various factors, including the level of domestic prices, global and regional steel demand, exchange rates and foreign subsidies. Until recently we had been experiencing competition from foreign suppliers of semi-finished and finished products in addition to steel. This competition has been significantly reduced as a result of recently implemented import restrictions, but could reemerge when the import restrictions end. While we are one of two North American manufacturers of rail for the major railroads, foreign suppliers compete with us in the domestic rail market. In addition, one U.S. steel company has announced that it plans to start shipping non-specialty rail in the first quarter of 2003 and another U.S. steel company has expressed an interest publicly in manufacturing rail, either of which will increase competition in the rail market. Increased competition, especially combined with excess production capacity in some products, could force us to lower our prices or to offer increased services at a higher cost to us, which would reduce our gross margins and net income.

Unplanned repairs or equipment outages could interrupt production and reduce income or cash flow.

        Our operations depend upon critical pieces of equipment, such as electric arc furnaces and semifinished casters, that may occasionally be out of service due to routine scheduled maintenance or equipment failures. Any unplanned unavailability of critical equipment would interrupt our production capabilities and reduce our sales and profitability. Although we have not recently experienced any equipment failures that have resulted in the complete shutdown of a major portion of our steelmaking production for a significant period, we have experienced unscheduled equipment outages in the past and we could have material shutdowns in the future.

The inputs used to produce our products are subject to price fluctuations that could increase our costs of production and adversely affect our profitability.

        Our principal raw material for the steel minimills at the Portland and Pueblo Mills is ferrous scrap metal derived from, among other sources, junked automobiles, railroad cars and railroad track materials and demolition scrap from obsolete structures, containers and machines. In addition, direct-reduction iron, hot-briquetted iron and pig iron (collectively "alternate metallics") can substitute for a limited portion of the scrap used in minimill steel production, although the sources and availability of alternate metallics are substantially more limited than those of scrap. The purchase prices for scrap and alternate metallics are affected by cyclical, seasonal and other market factors. Prices also fluctuate on the basis of factors affecting supply, such as demand from domestic and foreign steel producers, periodic shortages, freight costs, speculation by brokers, export markets and other conditions. Most of these factors are beyond our control. The cost of scrap and alternate metallics to us can vary significantly, and our product prices often cannot be adjusted, especially in the short-term, to recover the costs of increases in scrap and alternate metallics prices.

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        In recent years, we purchased material quantities of semi-finished steel slabs on the open market for use in the production of finished plate and coiled plate. These purchases are made on the spot market. While prices on the international slab market have been generally favorable and slab availability has not been restricted, and while we believe the recently announced import restrictions will not materially impact either the supply or cost of steel slabs, the slab market and pricing are subject to significant volatility, and slabs may not be available at reasonable prices in the future. We expect semifinished slab purchases to represent approximately 60% of our production needs for finished plate and coiled plate in 2002.

The western United States experienced a shortage of electricity in late 2000 and early 2001, and any future shortage could disrupt our business and reduce our profitability.

        Steel manufacturing is an energy intensive industry. In the fourth quarter of 2000 and the first quarter of 2001, the western United States experienced repeated episodes of diminished electrical power supply. As a result of these episodes, certain areas were subject to "rolling blackouts" or other unscheduled interruptions of electrical power. In addition, the cost of electrical power increased significantly during this period. Although there have been no recent episodes of diminished electrical power supply and we do not expect any to occur in the foreseeable future, electrical shortages and the related unscheduled interruptions in supply and increased costs may occur nonetheless. Any disruption in supply could reduce our manufacturing levels and consequently our sales and profitability. In addition, a substantial increase in specific utility or service costs could have a material adverse effect on our margins if we are unable to pass along the higher costs to our customers.

Supply limitations, including as a result of trade tariffs or quotas, would constrain our production and could materially and adversely affect our sales and profitability.

        As described above, we purchase material quantities of semifinished steel slabs on the open market for use in the production of finished plate and coiled plate because, following the addition of the Steckel Combination Mill to the Portland Mill in 1998, the production of finished specialty steel plate and coiled plate has exceeded the steel slab production of the Portland Mill. We expect semifinished slab purchases to represent approximately 60% of our production needs for finished steel plate and coiled plate in 2002.

        From time to time the Napa Pipe Mill purchases specialty steel plate from outside suppliers. We expect specialty steel plate purchases from outside parties to represent approximately 8% of the Napa Pipe Mill's production needs in 2002.

        On March 5, 2002, President Bush announced the imposition of restrictions on a wide range of steel imports for three years, including a 30% tariff on steel plate and a 30% tariff on imports of steel slabs in excess of 5.4 million tons in year one. The tariffs on steel plate and slabs decline to 24% in year two and 18% in year three. The tariffs on steel slabs in years two and three are on imports in excess of 5.9 million tons and 6.4 million tons in those years, respectively. Imports from Mexico, a large exporter of slab to the U.S., and Canada and certain developing countries are exempted from these restrictions. While we expect these restrictions will not materially impact either the supply or the cost of steel slabs, this may not be the case.

        In addition, while we expect near-term supplies of scrap and alternative metallics, the raw materials for our minimills, to continue to be available in sufficient quantities, there may be interruption or limitations in supply in the future. A disruption or curtailment in the supply of any of these inputs could constrain our production in general or require us to reallocate resources, thereby constraining our production of more profitable products. These constraints could have a material adverse effect on our production and sales levels and our profitability.

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Our cash flow from operations and available credit may not be sufficient to meet our capital requirements, and as a result we may need additional financing in the future, which may not be available.

        We believe our anticipated cash needs for budgeted capital expenditures and for working capital through the end of 2002 will be met from funds generated by operations. In addition, we closed on a new $75 million revolving credit facility concurrently with the closing of the sale of the original notes. This facility will expire on the third anniversary of its closing date.

        The amounts available from these sources and from proceeds of this offering, borrowings under our new credit facility and existing cash balances, however, may not be sufficient to meet our cash requirements if our results of operations are materially lower than anticipated, if our available borrowings under our new credit facility are less than anticipated or if our cash needs are greater than anticipated. The amount of borrowings which may be outstanding under our new credit facility at any time will be limited to a specified percentage of our eligible accounts receivable and eligible inventory. Moreover, our ability to borrow under our new credit facility will require compliance with its financial and other covenants. In addition, the Company faces potential costs and liabilities associated with environmental compliance and remediation issues and the labor dispute at the Pueblo Mill. Please refer to the risk factors on pages 28 through 32 under "Risks Related to Our Business" for a description of risks related to those matters. As a result, or for other reasons, we may need to enter into new financing arrangements and raise additional capital in the future.

        Any debt that we incur in the future will increase the amount of our outstanding debt, our debt service requirements and the related risks that we face. See "—Risks Related to Our Substantial Debt." We may not be able to obtain the necessary sources of liquidity and financing on satisfactory terms, or at all. If we are unable to secure additional financing or raise additional capital on satisfactory terms, we may not be able to take advantage of future opportunities or respond to demands of customers and competitors.

The resolution of pending environmental actions and our costs of compliance with environmental orders and regulations may materially and adversely affect our competitiveness and profitability

        We are subject to extensive federal, state and local environmental laws and regulations concerning, among other things, wastewater, air emissions, toxic use reduction and hazardous materials storage, handling and disposal. The Portland and Pueblo Mills, like other similar steel mills in the industry, generate hazardous waste from the melting operation of the electric arc furnaces, primarily dust containing heavy metals. We are subject to increasingly stringent environmental standards, including those relating to air emissions, waste water and stormwater discharge and hazardous materials use, storage, handling and disposal, and will likely be required to make additional expenditures, which could be significant, relating to environmental matters on an ongoing basis. Furthermore, although we have established reserves for environmental remediation, the cost of remedial measures that might eventually be required by environmental authorities may exceed those reserves. In addition, additional environmental claims, requiring further remedial expenditures in excess of our reserves, might be asserted by environmental authorities or private parties. We also may be subject to legal proceedings brought by private parties or governmental agencies with respect to environmental matters. Expenditures related to these matters could have a material adverse effect on our business.

        Expenditures or proceedings of the nature described above, or other expenditures or liabilities resulting from hazardous substances located on our property or used or generated in the conduct of our business, or resulting from circumstances, actions, proceedings or claims relating to environmental matters, may have a material adverse effect on us. At June 30, 2002, our financial statements reflected total accrued liabilities of $38.6 million to cover future costs arising from environmental issues relating to our properties. Our actual future expenditures, however, for installation of and improvements to

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environmental control facilities, remediation of environmental conditions existing at our properties and other similar matters cannot be conclusively determined and expenditures in excess of our accrual could have a material adverse effect on our business.

        We own or have owned properties and conduct or have conducted operations at properties which have been assessed as contaminated with hazardous or other controlled substances or as otherwise requiring remedial action under federal, state or local environmental laws or regulations. As a result, we are subject to several actual or potential environmental remediation obligations and potential environmental related liabilities, including the following:

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        We are also subject to environmental claims asserted by private parties, including the following:

Most of the employees of CF&I belong to unions; any labor disruptions, work stoppages or significant negotiated wage increases could have an adverse effect on our business.

        Most of CF&I's employees belong to unions. Accordingly, CF&I negotiates collective bargaining agreements with these unions. Any failure to reach agreement on new labor agreements when required might result in a work stoppage that could, depending upon the operations affected and the length of the work stoppage, have a material adverse effect on our operations. In addition, a contract may be renegotiated with significant increases in wages or other adverse economic terms, which would increase our costs and could reduce our profitability. As more fully explained in the section immediately below, we do not have collective bargaining agreements at the Pueblo Mill due to a labor dispute.

        CF&I is party to a dispute stemming from a strike at the Pueblo Mill and a related job action of certain bargaining unit employees of the Colorado and Wyoming Railway Company. See the following Risk Factor for a discussion of the risks related to this dispute.

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Adverse determination of the dispute relating to the strike by the United Steel Workers of America at the Pueblo Mill and a related job action at the Colorado and Wyoming Railway could have a material adverse effect on our financial condition.

        CF&I is party to a dispute stemming from the 1997 strike by the Union at the Pueblo Mill (the "Pueblo Strike") and the related job action of certain bargaining unit employees of the Colorado and Wyoming Railway Company ("C&W"), a wholly owned subsidiary of New CF&I (the "C&W Action"). The strike occurred in October 1997 after the expiration of the labor contracts between CF&I and the employees at our Pueblo Mill. There are no collective bargaining agreements in place with the employees at the Pueblo Mill, and the parties are operating under the terms of the expired collective bargaining agreements and changes implemented by CF&I after negotiations with the Union. The Union has filed charges with the National Labor Relations Board ("NLRB") challenging CF&I's practice in this regard.

        The Pueblo Strike involved approximately 1,000 bargaining unit employees. On December 30, 1997, the Union called off the Pueblo Strike and made an unconditional offer to return to work. Because CF&I had hired permanent replacement workers to replace the striking union members, CF&I refused to reinstate the strikers. Instead, the striking union members were put on a preferential hiring list to be reinstated to their former jobs as positions became available. As of June 30, 2002, approximately 222 of the formerly striking employees had not been offered reinstatement.

        In February 1998, the Regional Director of the NLRB Denver office issued a complaint against CF&I, alleging violations of several provisions of the National Labor Relations Act. After a hearing on these allegations before an Administrative Law Judge (the "ALJ"), the ALJ ruled in May 2000 that CF&I, among other things, was liable for unfair labor practices and ordered as a remedy the reinstatement of all 1,000 striking employees, effective as of December 30, 1997, with back pay and benefits, plus interest, less interim earnings. CF&I has appealed this decision to the NLRB in Washington, D.C. Either party may appeal the decision of the NLRB to an appropriate federal Circuit Court of Appeals and may also appeal subsequently to the U.S. Supreme Court. Back pay is generally determined by the quarterly earnings of those employees who otherwise would have retained their employment at CF&I less interim wages earned elsewhere by those unreinstated employees. While the final determination of the case could result in back pay being awarded to all striking workers, we believe that such an outcome is improbable. While the amount of damages is difficult to calculate, if the ALJ's determination is upheld throughout the appeals process, the damages that CF&I may be required to pay could have a material adverse effect on our consolidated financial condition results of operations or cash flows. CF&I has not established a reserve for any liability that may result from an adverse determination in this matter. CF&I does not intend to agree to any settlement of this matter that will have a material adverse effect on our business. An ultimate adverse determination against CF&I in this matter, however, may have a material adverse effect on our consolidated financial condition, results of operations, or cash flows. In addition, in connection with this labor dispute, the Union has undertaken certain activities designed to exert public pressure on CF&I. Although such activities have generated some publicity in the news media, CF&I believes that they have had little or no negative impact on its operations, but such activities may have a negative impact in the future.

        During the strike by the Union at the Pueblo Mill, 36 members of several bargaining units who were employed by C&W refused to report to work for an extended period of time, claiming that concerns for their safety prevented them from crossing the picket line. The bargaining unit employees of C&W were not on strike, and because the other C&W employees reported to work without incident, C&W considered those employees to have quit their employment and, accordingly, C&W declined to allow those individuals to return to work. The unions representing those individuals filed claims with C&W asserting that C&W had violated certain provisions of the applicable collective bargaining agreement, the Federal Railroad Safety Act ("FRSA"), or the Railway Labor Act. In all of the claims, the unions demanded reinstatement of the former employees with their seniority intact, back pay and

31


benefits. In January 2001 an arbitration award was rendered against C&W with respect to 30 former employees represented by the United Transportation Board, ordering the reinstatement of those claimants who intend to return to work for C&W at their prior seniority with back pay and benefits, net of interim wages earned elsewhere. In February 2001 C&W filed a petition for review of that arbitration award in the District Court for the District of Colorado, and intends to pursue this matter through the appropriate United States appellate court, if necessary. Given the inability to determine the number of former employees who intend to return to work at C&W and the extent to which mitigating and other factors may impact the liability for back pay and benefits, it is difficult to estimate the liability if there is ultimately an adverse determination against C&W.

        Six of the former C&W employees pursued separate claims against C&W under the terms of a collective bargaining agreement. In March 2001 an award was rendered against C&W, ordering the reinstatement of those claimants who intend to return to work for C&W at their prior seniority with back pay and benefits, net of interim wages earned elsewhere. As of June 30, 2002, two of the six former employees had accepted a settlement from C&W. The remaining four do not agree with the award amount from the Public Labor Board. We do not believe an adverse determination against C&W with regard to the four remaining former employees would have a material adverse effect on our results of operations.

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USE OF PROCEEDS

        We will not receive any proceeds from the issuance of the exchange notes offered pursuant to the Exchange Offer. In consideration for issuing the exchange notes as contemplated in this prospectus, we will receive in exchange original notes in like principal amount, the terms of which are identical in all respects to the exchange notes except for certain transfer restrictions and registration rights. The original notes surrendered in exchange for exchange notes will be retired and canceled and cannot be reissued. Accordingly, issuance of the exchange notes will not result in any increase in our indebtedness.

        The net proceeds that we received from the sale of the original notes on July 15, 2002 were approximately $291.4 million, after deduction of discounts, commissions and offering expenses. We used a portion of the net proceeds to discharge our 11% First Mortgage Notes due 2003 and to redeem those notes on August 15, 2002. We also used a portion of the net proceeds to repay our prior revolving credit facility, which we replaced on July 15, 2002. We will use the remainder of the net proceeds for working capital and other general corporate purposes.


RATIO OF EARNINGS TO FIXED CHARGES

        The following table sets forth our historical consolidated ratio of earnings to fixed charges for the periods indicated.

Years Ended December 31,
   Six Months Ended
1997
   1998
   1999
   2000
   2001
   June 30, 2002
—   1.6x   1.9x   —   —   1.5x

        This ratio is computed by dividing earnings by fixed charges. For the purpose of determining the ratio of earnings to fixed charges, earnings consist of consolidated income (loss) before income taxes plus fixed charges (net of capitalized interest) and minority interest in income of majority-owned subsidiaries. Fixed charges consist of consolidated interest on indebtedness, adding back capitalized interest and amortization of debt issue costs. Fixed charges exceeded earnings by $3,301,000, $30,268,000 and $8,432,000 in the years ended December 31, 1997, 2000 and 2001, respectively.

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SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA

        We present below our selected historical consolidated financial data. We derived the financial data as of the end of and for each of the five years in the period ended December 31, 2001 from the audited consolidated financial statements of the Company as of those dates and for those periods. The selected historical financial data as of the end of and for the six months ended June 30, 2001 and June 30, 2002 have been derived from the unaudited consolidated financial statements of the Company as of those dates and for those periods. The unaudited financial statements have been prepared on a basis consistent with the audited financial statements. All adjustments, consisting only of normal recurring adjustments necessary for a fair statement of the interim consolidated financial statements, have been included. Results for the six months ended June 30, 2001 and June 30, 2002 are not necessarily indicative of results for the fiscal year ending December 31, 2002. You should read the selected historical consolidated financial data together with "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K and Quarterly Report on Form 10-Q and our consolidated financial statements and related notes as of the end of and for such periods.

 
   Year Ended December 31,
   Six Months Ended June 30,
  
 
   1997
   1998
   1999
   2000
   2001
   2001
   2002
  
 
   (In thousands, except ratios and per share, ton and per ton amounts)

  
Income Statement Data:                                            
Sales   $ 789,380   $ 937,400   $ 884,649   $ 672,017   $ 780,887   $ 383,914   $ 430,385  
Cost of sales     702,220     826,606     756,461     619,016     694,941     352,175     374,812  
Settlement of litigation     —     (7,037 )   (7,027 )   —     (3,391 )   —     —  
Loss (gain) on sale of assets     (2,228 )   (4,746 )   501     (290 )   (10 )   29     (1,069 )
Selling, general and administrative expenses     51,749     56,189     55,992     51,486     64,300     29,113     29,907  
Incentive compensation     7,157     2,890     10,540     698     244     44     1,643  
   
 
 
 
 
 
 
 
  Operating income (loss)     30,482     63,498     68,182     1,107     24,803     2,553     25,092  
Interest expense     (10,216 )   (38,485 )   (35,027 )   (34,936 )   (35,595 )   (17,854 )   (16,940 )
Other income (expense), net     4,249     (484 )   1,290     4,355     3,044     562     1,471  
Minority interests     (5,898 )   (4,213 )   (1,475 )   (7 )   (339 )   (27 )   (364 )
Income tax benefit (expense)     (6,662 )   (8,387 )   (13,056 )   11,216     2,159     4,704     (4,179 )
   
 
 
 
 
 
 
 
Income (loss) before cumulative accounting change                                         5,080  
                                       
 
Cumulative accounting change                                         (17,967 )
                                       
 
  Net income (loss)   $ 11,955   $ 11,929   $ 19,914   $ (18,265 ) $ (5,928 ) $ (10,062 ) $ (12,887 )
   
 
 
 
 
 
 
 
  Net income (loss), adjusted(1)   $ 12,495   $ 12,462   $ 20,475   $ (17,707 ) $ (5,370 ) $ (9,772 ) $ (12,887 )
   
 
 
 
 
 
 
 
Common Stock Information:                                            
Basic and diluted net income (loss) per share   $ 0.45   $ 0.45   $ 0.76   $ (0.69 ) $ (0.22 ) $ (0.38 ) $ 0.19  
Basic and diluted net income (loss) per share, adjusted(1)   $ 0.48   $ 0.47   $ 0.78   $ (0.67 ) $ (0.20 ) $ (0.37 ) $ (0.49 )
Weighted average common shares and common equivalents outstanding     26,292     26,368     26,375     26,375     26,378     26,375     26,387  

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Balance Sheet Data (at end of period):                                            
Working capital   $ 115,322   $ 34,427   $ 101,177   $ 108,753   $ 53,462   $ 37,817   $ 76,106  
Total assets     986,620     993,970     877,254     880,354     869,576     873,500     803,788  
Current liabilities     147,496     252,516     101,660     126,748     205,607     210,698     166,513  
Long-term debt (excluding current portion)     367,473     270,440     298,329     314,356     233,542     238,956     228,775  
Total stockholders' equity     349,007     345,117     352,402     331,645     318,586     321,258     306,778  
Other Data:                                            
Depreciation and amortization   $ 28,642   $ 45,164   $ 47,411   $ 46,506   $ 46,097   $ 23,008   $ 23,443  
Capital expenditures   $ 81,670   $ 27,754   $ 15,908   $ 16,684   $ 12,933   $ 5,736   $ 9,884  
Total tonnage sold:                                            
  Oregon Steel Division     567,000     808,800     969,800     871,500     829,700     424,800     465,600  
  RMSM Division     907,600     861,700     734,900     757,000     780,900     388,000     432,000  
   
 
 
 
 
 
 
 
    Total tonnage sold     1,474,600     1,670,500     1,704,700     1,628,500     1,610,600     812,800     897,600  
   
 
 
 
 
 
 
 
Operating margin     3.9 %   6.8 %   7.7 %   0.1 %   3.2 %   0.0 %   5.8 %
Operating income (loss) per ton sold   $ 21   $ 38   $ 40   $ 1   $ 15   $ 3   $ 28  
(1)
The Company adopted SFAS 142 effective January 1, 2002. Income was adjusted to exclude goodwill amortization, net of tax and minority interest, of $540,000, $533,000, $561,000, $558,000 and $558,000 for the years ended December 31, 1997, 1998, 1999, 2000 and 2001, respectively, and of $290,000 for the six months ended June 30, 2001. See Note 6 to the Consolidated Financial Statements included in our Quarterly Report on Form 10-Q for the quarter ended June 30, 2002.

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THE EXCHANGE OFFER

General

        We are offering to exchange up to $305,000,000 in aggregate principal amount of exchange notes for the same aggregate principal amount of original notes, properly tendered before the expiration date and not withdrawn. We are making the exchange offer for all of the original notes. Your participation in the exchange offer is voluntary, and you should carefully consider whether to accept this offer.

        On the date of this prospectus, $305,000,000 in aggregate principal amount of original notes are outstanding. Our obligations to accept original notes for exchange pursuant to the exchange offer are limited by the conditions listed below under "—Conditions to the Exchange Offer."

        We currently expect that each of the conditions will be satisfied and that no waivers will be necessary.

Purpose of the Exchange Offer

        We issued and sold $305,000,000 in aggregate principal amount of the original notes on July 15, 2002 in a transaction exempt from the registration requirements of the Securities Act. The initial purchaser of original notes subsequently resold the original notes to qualified institutional buyers in reliance on Rule 144A and to non-U.S. persons under Regulation S under the Securities Act.

        Because the transaction was exempt from registration under the Securities Act, you may reoffer, resell or otherwise transfer the original notes only if registered under the Securities Act or if an applicable exemption from the registration and prospectus delivery requirements of the Securities Act is available.

        In connection with the issuance and sale of the original notes, we entered into the registration rights agreement, which requires us to complete this exchange offer on or before February 25, 2003, which is 45 days after this registration statement on Form S-4 is required to be declared effective pursuant to the agreement, to avoid incurring liquidated damages on the original notes.

        In addition, there are circumstances under which we are required to use our best efforts to file a shelf registration statement with respect to resales of the original notes.

        We are making the exchange offer to satisfy our obligations under the registration rights agreement. Otherwise, we are not required to file any registration statement to register any original notes. Holders of original notes that do not tender their original notes or whose original notes are tendered but not accepted will have to rely on exemptions to registration requirements under the securities laws, including the Securities Act, if they wish to sell their original notes. For a more detailed description of the registration rights agreement, see "Description of Notes—Registration Rights, Exchange Offer." We have filed a copy of the registration rights agreement as an exhibit to the Form S-4 filed with the SEC on August 16, 2002.

Resale of Exchange Notes

        We have not requested, and do not intend to request, an interpretation by the staff of the SEC as to whether the exchange notes issued pursuant to the exchange offer in exchange for the original notes may be offered for sale, resold or otherwise transferred by any holder without compliance with the registration and prospectus delivery provisions of the Securities Act. Instead, based on an interpretation by the staff in a series of no-action letters issued to third parties, we believe that exchange notes issued pursuant to the exchange offer in exchange for original notes may be offered for sale, resold and otherwise transferred by any holder of exchange notes if:

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        Any holder who exchanges original notes in the exchange offer with the intention of participating in any manner in a distribution of the exchange notes must comply with the registration and prospectus delivery requirements of the Securities Act in connection with a secondary resale transaction and such secondary resale transaction must be covered by an effective registration statement under the Securities Act containing the selling holder's information required by Item 507 or Item 508, as applicable, of Regulation S-K under the Securities Act.

        Because the SEC has not considered our exchange offer in the context of a no-action letter, we cannot assure you that the staff would make a similar determination with respect to the exchange offer. Any holder that is an affiliate of ours or that tenders in the exchange offer for the purpose of participating in a distribution of the exchange notes may be deemed to have received restricted securities and will not be allowed to rely on this interpretation by the staff and must comply with the registration and prospectus delivery requirements of the Securities Act in connection with any resale transaction.

        If you participate in the exchange offer, you must acknowledge, among other things, that you are not participating in, and do not intend to participate in, a distribution of exchange notes. If you are a broker-dealer that receives exchange notes for your own account in exchange for original notes, and you acquired your original notes as a result of your market-making activities or other trading activities, you must acknowledge that you will deliver a prospectus in connection with any resale of the exchange notes. Please refer to the section in this prospectus entitled "Plan of Distribution."

Terms of the Exchange Offer

        Upon the terms and subject to the conditions set forth in this prospectus and in the letter of transmittal, we will accept for exchange any original notes properly tendered and not withdrawn before expiration of the exchange offer. The date of acceptance for exchange of the original notes and completion of the exchange offer, is the exchange date, which will be the first business day following the expiration date unless we extend the date as described in this prospectus. We will issue $1,000 principal amount of exchange notes in exchange for each $1,000 principal amount of original notes surrendered under the exchange offer. The original notes may be tendered only in integral multiples of $1,000. The exchange notes will be delivered on the earliest practicable date following the exchange date.

        The form and terms of the exchange notes will be substantially identical to the form and terms of the original notes, except the exchange notes:

        The exchange notes will evidence the same debt as the original notes. The exchange notes will be issued under and entitled to the benefits of the same indenture that authorized the issuance of the original notes.

        The exchange offer is not conditioned upon any minimum aggregate principal amount of original notes being tendered for exchange.

        As of the date of this prospectus, $305,000,000 aggregate principal amount of the original notes are outstanding. This prospectus and the letter of transmittal are being sent to all registered holders of original notes. There will be no fixed record date for determining registered holders of original notes entitled to participate in the exchange offer.

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        We intend to conduct the exchange offer in accordance with the provisions of the registration rights agreement, the indenture, the applicable requirements of the Securities Act, the Exchange Act, and the rules and regulations of the SEC. Original notes that are not exchanged in the exchange offer will remain outstanding and continue to accrue interest and will be entitled to the rights and benefits their holders have under the indenture relating to the original notes and the exchange notes and, under limited circumstances, the registration rights agreement.

        We will be deemed to have accepted for exchange properly tendered original notes when we have given oral or written notice of the acceptance to the exchange agent. The exchange agent will act as agent for the holders of original notes who surrender them in the exchange offer for the purposes of receiving the exchange notes from us and delivering the exchange notes to the holders. The exchange agent will make the exchange as promptly as practicable on or after the date of acceptance for exchange of the original notes. The exchange date will be the first business day following the expiration date unless it is extended as described in this prospectus. We expressly reserve the right to amend or terminate the exchange offer, and not to accept for exchange any original notes not previously accepted for exchange, upon the occurrence of any of the conditions specified below under "—Conditions to the Exchange Offer."

        Holders who tender original notes in the exchange offer will not be required to pay brokerage commissions or fees or, subject to the instructions in the letter of transmittal, transfer taxes with respect to the exchange of original notes. We will pay all charges and expenses, other than applicable taxes described below, in connection with the exchange offer. It is important that you read "—Solicitation of Tenders; Fees and Expenses" and "—Transfer Taxes" below for more details regarding fees and expenses incurred in the exchange offer.

        We will return any original notes that we do not accept for exchange for any reason without expense to the tendering holder as promptly as practicable after the expiration or termination of the exchange offer.

Expiration Date; Extension; Termination; Amendment

        The exchange offer will expire at 5:00 p.m., New York City time, on                        , 2002, unless we have extended the period of time that the exchange offer is open. The expiration date will be at least 20 business days after the beginning of the exchange offer as required by Rule 14e-1(a) under the Exchange Act.

        We reserve the right to extend the period of time that the exchange offer is open, and delay acceptance for exchange of any original notes, by giving oral or written notice to the exchange agent and by timely public announcement no later than 9:00 a.m., New York City time, on the next business day after the previously scheduled expiration date. During any extension, all original notes previously tendered will remain subject to the exchange offer unless properly withdrawn.

        We also reserve the right to:

        If any termination or amendment occurs, we will notify the exchange agent and will either issue a press release or give oral or written notice to you as promptly as practicable.

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Procedures for Tendering Original Notes

        We have forwarded to you, along with this prospectus, a letter of transmittal relating to this exchange offer. Because all of the original notes are held in book-entry accounts maintained by the exchange agent at DTC, a holder need not submit a letter of transmittal if the holder tenders original notes in accordance with the procedures mandated by DTC's Automated Tender Offer Program ("ATOP"). To tender original notes without submitting a letter of transmittal, the electronic instructions sent to DTC and transmitted to the exchange agent must contain your acknowledgment of receipt of and your agreement to be bound by and to make all of the representations contained in the letter of transmittal. In all other cases, a letter of transmittal must be manually executed and delivered as described in this prospectus.

        Only a holder of record of original notes may tender original notes in the exchange offer. To tender in the exchange offer, a holder must comply with the procedures of DTC, and either:

        In addition, either:

        To be tendered effectively, the exchange agent must receive any physical delivery of the letter of transmittal and other required documents at the address set forth below under "—Exchange Agent" before expiration of the exchange offer. To receive confirmation of valid tender of original notes, a holder should contact the exchange agent at the telephone number listed under "—Exchange Agent."

        The tender by a holder that is not withdrawn before expiration of the exchange offer will constitute an agreement between that holder and us in accordance with the terms and subject to the conditions set forth in this prospectus and in the letter of transmittal. Only a registered holder of original notes may tender the original notes in the exchange offer. If a holder completing a letter of transmittal tenders less than all of the original notes held by this holder, this tendering holder should fill in the applicable box of the letter of transmittal. The amount of original notes delivered to the exchange agent will be deemed to have been tendered unless otherwise indicated.

        If original notes, the letter of transmittal or any other required documents are physically delivered to the exchange agent, the method of delivery is at the holder's election and risk. Rather than mail these items, we recommend that holders use an overnight or hand delivery service. In all cases, holders should allow sufficient time to assure delivery to the exchange agent before expiration of the exchange offer. Holders should not send the letter of transmittal or original notes to us. Holders may request

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their respective brokers, dealers, commercial banks, trust companies or other nominees to effect the above transactions for them.

        Any beneficial owner whose original notes are registered in the name of a broker, dealer, commercial bank, trust company or other nominee and who wishes to tender should contact the registered holder promptly and instruct it to tender on the owner's behalf. If the beneficial owner wishes to tender on its own behalf, it must, prior to completing and executing the letter of transmittal and delivering its original notes, either:

        The transfer of registered ownership may take considerable time and may not be completed prior to the expiration date.

        If the applicable letter of transmittal is signed by the record holder(s) of the original notes tendered, the signature must correspond with the name(s) written on the face of the original note without alteration, enlargement or any change whatsoever. If the applicable letter of transmittal is signed by a participant in DTC the signature must correspond with the name as it appears on the security position listing as the holder of the original notes.

        Except as described below, a signature on a letter of transmittal or a notice of withdrawal must be guaranteed by an eligible guarantor institution. Eligible guarantor institutions include banks, brokers, dealers, municipal securities dealers, municipal securities brokers, government securities dealers, government securities brokers, credit unions, national securities exchanges, registered securities associations, clearing agencies and savings associations. The signature need not be guaranteed by an eligible guarantor institution if the original notes are tendered:

        If the letter of transmittal is signed by a person other than the registered holder of any original notes, the original notes must be endorsed or accompanied by a properly completed bond power. The bond power must be signed by the registered holder as the registered holder's name appears on the original notes and an eligible institution must guarantee the signature on the bond power.

        If the letter of transmittal or any original notes or bond powers are signed by trustees, executors, administrators, guardians, attorneys-in-fact, officers of corporations or others acting in a fiduciary or representative capacity, these persons should so indicate when signing. Unless we waive this requirement, they should also submit evidence satisfactory to us of their authority to deliver the letter of transmittal.

        We will determine in our sole discretion all questions as to the validity, form, eligibility, including time of receipt, acceptance and withdrawal of tendered original notes. Our determination will be final and binding. We reserve the absolute right to reject any original notes not properly tendered or any original notes the acceptance of which would, in the opinion of our counsel, be unlawful. We also reserve the right to waive any defects, irregularities or conditions of tender as to particular original notes. Our interpretation of the terms and conditions of the exchange offer, including the instructions in the letter of transmittal, will be final and binding on all parties.

        Unless waived, any defects or irregularities in connection with tenders of original notes must be cured within the time that we determine. Although we intend to notify holders of defects or irregularities with respect to tenders of original notes, neither we, the exchange agent nor any other

40


person will incur any liability for failure to give notification. Tenders of original notes will not be deemed made until those defects or irregularities have been cured or waived. Any original notes received by the exchange agent that are not properly tendered and as to which the defects or irregularities have not been cured or waived will be returned by the exchange agent without cost to the tendering holder, unless otherwise provided in the letter of transmittal, as soon as practicable following the expiration date.

        In all cases, we will issue exchange notes for original notes that we have accepted for exchange under the exchange offer only after the exchange agent timely receives:

        Holders should receive copies of the letter of transmittal with the prospectus. A holder may obtain additional copies of the letter of transmittal from the exchange agent at its offices listed under "—Exchange Agent." By signing the letter of transmittal, or causing DTC to transmit an agent's message to the exchange agent, each tendering holder of original notes will represent to us that, among other things:

DTC Book-Entry Transfer

        The exchange agent has established an account with respect to the original notes at DTC for purposes of the exchange offer.

        With respect to the original notes, the exchange agent and DTC have confirmed that any financial institution that is a participant in DTC may utilize DTC ATOP procedures to tender original notes.

        With respect to the original notes, any participant in DTC may make book-entry delivery of original notes by causing DTC to transfer the original notes into the exchange agent's account in accordance with DTC's ATOP procedures for transfer.

        However, the exchange for the original notes so tendered will be made only after a book-entry confirmation of such book-entry transfer of original notes into the exchange agent's account, and timely receipt by the exchange agent of an agent's message and any other documents required by the letter of transmittal.

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Guaranteed Delivery Procedures

        Holders wishing to tender their original notes but whose original notes are not immediately available or who cannot deliver their original notes, the letter of transmittal, or any other required documents to the exchange agent, or cannot comply with the applicable procedures described above before expiration of the exchange offer, may tender if:

        Upon request to the exchange agent, a notice of guaranteed delivery will be sent to holders who wish to tender their original notes according to the guaranteed delivery procedures set forth above.

Withdrawal Rights

        You may withdraw your tender of original notes at any time before 5:00 p.m., New York City time, on the expiration date.

        For a withdrawal to be effective, the exchange agent must receive a computer generated notice of withdrawal, transmitted by DTC on behalf of the holder in accordance with the standard operating procedure of DTC or a written notice of withdrawal, sent by facsimile transmission, receipt confirmed by telephone, or letter, before the expiration date.

        Any notice of withdrawal must:

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        The exchange agent will return the properly withdrawn original notes promptly following receipt of notice of withdrawal. If original notes have been tendered pursuant to the procedure for book-entry transfer, any notice of withdrawal must specify the name and number of the account at DTC to be credited with the withdrawn original notes or otherwise comply with DTC's procedures.

        Any original notes withdrawn will not have been validly tendered for exchange for purposes of the exchange offer. Any original notes that have been tendered for exchange but which are not exchanged for any reason will be returned to the holder without cost to the holder as soon as practicable after withdrawal, rejection of tender or termination of the exchange offer. In the case of original notes tendered by book-entry transfer into the exchange agent's account at DTC pursuant to its book-entry transfer procedures, the original notes will be credited to an account with DTC specified by the holder, as soon as practicable after withdrawal, rejection of tender or termination of the exchange offer. Properly withdrawn original notes may be retendered by following one of the procedures described under "—Procedures for Tendering Original Notes" above at any time on or before the expiration date.

Acceptance of Original Notes for Exchange; Delivery of Exchange Notes

        Upon satisfaction or waiver of all of the conditions to the exchange offer, we will accept, promptly after the exchange date, all original notes properly tendered and will issue the exchange notes promptly after the acceptance. Please refer to the section in this prospectus entitled "—Conditions to the Exchange Offer" below. For purposes of the exchange offer, we will be deemed to have accepted properly tendered original notes for exchange when we give notice of acceptance to the exchange agent.

        For each original note accepted for exchange, the holder of the original note will receive an exchange note having a principal amount at maturity equal to that of the surrendered original note.

        In all cases, we will issue exchange notes for original notes that are accepted for exchange pursuant to the exchange offer only after the exchange agent timely receives certificates for the original notes or a book-entry confirmation of the original notes into the exchange agent's account at DTC, a properly completed and duly executed letter of transmittal, or an agent's message, and all other required documents.

Conditions to the Exchange Offer

        We will not be required to accept for exchange, or to issue exchange notes in exchange for, any original notes and may terminate or amend the exchange offer, by notice to the exchange agent or by a timely press release, at any time before accepting any of the original notes for exchange, if, in our reasonable judgment the exchange notes to be received will not be tradable by the holder without restriction under the Securities Act.

        In addition, we will not be obligated to accept for exchange the original notes of any holder that has not made to us:

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        We expressly reserve the right, at any time or at various times, to extend the period of time during which the exchange offer is open. Consequently, we may delay acceptance of any original notes by giving oral or written notice of such extension to their holders. During any such extensions, all original notes previously tendered will remain subject to the exchange offer, and we may accept them for exchange. We will return any original notes that we do not accept for exchange for any reason without expense to their tendering holders as promptly as practicable after the expiration or termination of the exchange offer.

        In addition, we expressly reserve the right to amend or terminate the exchange offer and to reject for exchange any original notes not previously accepted for exchange, upon the occurrence of any of the conditions of the exchange offer specified above. We will give oral or written notice of any extension, amendment, nonacceptance or termination to the holders of the original notes as promptly as practicable. In the case of any extension, such notice will be issued no later than 9:00 a.m., New York City time, on the business day after the previously scheduled expiration date.

        These conditions are for our sole benefit, and we may assert them regardless of the circumstances that may give rise to them or waive them in whole or in part at any or at various times in our sole discretion. If we fail at any time to exercise any of the foregoing rights, this failure will not constitute a waiver of such right. Each such right will be deemed an ongoing right that we may assert at any time or at various times.

        In addition, we will not accept for exchange any original notes tendered, and will not issue exchange notes in exchange for any such original notes, if at such time any stop order will be threatened or in effect with respect to the registration statement of which this prospectus constitutes a part or the qualification of the indenture under the Trust Indenture Act of 1939.

        The exchange offer is not conditioned upon any minimum principal amount of original notes being tendered for exchange.

Exchange Agent

        We have appointed U.S. Bank, National Association as the exchange agent for the exchange offer. You should direct questions and requests for assistance, requests for additional copies of this prospectus or of the letter of transmittal and requests for the notice of guaranteed delivery, as well as deliver all executed letters of transmittal and any other required documents, to the exchange agent at the addresses listed below:

By Mail   By Overnight Carrier   By Hand
U.S. Bank National Association   U.S. Bank National Association   U.S. Bank National Association
150 E. Fifth Street   150 E. Fifth Street   150 E. Fifth Street
St. Paul, MN 55101   St. Paul, MN 55101   St. Paul, MN 55101

Attn: Specialized Finance Group
4th Floor
 
Attn: Specialized Finance Group
4th Floor
 
Attn: Specialized Finance Group
4th Floor
Bond Drop Window
By Facsimile Transmission
(For Eligible Institutions Only)
(651) 244-1537

To confirm by Telephone
(800) 934-6802

        Delivery to an address other than as listed above, or transmissions of instructions to a facsimile number other than as listed above, will not constitute a valid delivery.

        U.S. Bank National Association is the trustee under the indenture governing the notes.

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Solicitation of Tenders; Fees and Expenses

        We have not retained any dealer-manager in connection with the exchange offer and will not make any payments to brokers, dealers or others soliciting acceptances of the exchange offer. However, we will pay the exchange agent reasonable and customary fees for its services and will reimburse it for its reasonable out-of-pocket expenses in connection with the exchange offer.

        We will pay the estimated cash expenses to be incurred in connection with the exchange offer, including the following:

Transfer Taxes

        We will pay all transfer taxes, if any, applicable to the exchange of original notes under the exchange offer. The tendering holder, however, will be required to pay any transfer taxes, whether imposed on the registered holder or any other person, if:

        If satisfactory evidence of payment of transfer taxes is not submitted with the letter of transmittal, the amount of any transfer taxes will be billed to the tendering holder.

Accounting Treatment

        We will record the exchange notes at the same carrying value of the original notes reflected in our accounting records on the date the exchange offer is completed. Accordingly, we will not recognize any gain or loss for accounting purposes upon the exchange of exchange notes for original notes. We will expense the costs incurred in connection with the issuance of the exchange notes.

Consequences of Failure to Exchange

        If you do not exchange your original notes for exchange notes pursuant to the exchange offer, you will continue to be subject to the restrictions on transfer of the original notes as described in the legend on the original notes. In general, the original notes may be offered or sold only if registered under the Securities Act, except pursuant to an exemption from, or in a transaction not subject to, the Securities Act and applicable state securities laws. We do not currently anticipate that we will register the original notes under the Securities Act. However, under limited circumstances we may be required to file with the SEC a shelf registration statement to cover resales of the original notes by the holders of notes who satisfy conditions relating to the provision of information in connection with the shelf

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registration statement. Please refer to the section in this prospectus entitled "Description of Notes—Registration Rights, Exchange Offer."

        Your participation in the exchange offer is voluntary, and you should carefully consider whether to participate. We urge you to consult your financial and tax advisors in making a decision whether or not to tender your original notes. Please refer to the section in this prospectus entitled "Certain U.S. Federal Tax Considerations."

        As a result of the making of, and upon acceptance for exchange of all validly tendered original notes pursuant to the terms of, this exchange offer, we will have fulfilled a covenant contained in the registration rights agreement. If you do not tender your original notes in the exchange offer, you will be entitled to all the rights and limitations applicable to the original notes under the indenture, except for any rights under the registration rights agreement that by their terms end or cease to have further effectiveness as a result of the making of this exchange offer. To the extent that original notes are tendered and accepted in the exchange offer, the trading market for untendered, or tendered but unaccepted, original notes could be adversely affected. Please refer to the section in this prospectus entitled "Risk Factors—If you do not exchange your original notes, your original notes will continue to be subject to the existing transfer restrictions and you may not be able to sell your original notes."

        We may in the future seek to acquire untendered original notes in open market or privately negotiated transactions, through subsequent exchange offers or otherwise. However, we have no present plans to acquire any original notes that are not tendered in the exchange offer or to file a registration statement to permit resales of any untendered original notes.

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DESCRIPTION OF NOTES

        As used below in this "Description of Notes" section, reference to "Notes" refer to the original notes and the exchange notes, unless the context otherwise requires.

        The original notes were issued and the exchange notes will be issued under an indenture (the "Indenture") among the Company, the Guarantors and U.S. Bank National Association, as trustee (the "Trustee"). The terms of the Notes include those stated in the Indenture and the Security Documents and those made a part of the Indenture by reference to the Trust Indenture Act of 1939, as amended (the "Trust Indenture Act").

        The following summarizes provisions of the Indenture, the Security Documents, the Intercreditor Agreement and the Registration Rights Agreement. The following summary does not purport to be complete and is subject to, and is qualified in its entirety by reference to, all of the provisions of the Indenture, the Security Documents, the Intercreditor Agreement and the Registration Rights Agreement, and terms made a part of the Indenture by reference to the Trust Indenture Act. We urge you to read the Indenture, the Security Documents, the Intercreditor Agreement, the Registration Rights Agreement and the Trust Indenture Act because they, and not this description, define your rights as a holder of Notes. Copies of the Indenture, the Security Documents and the Registration Rights Agreement are available from the Company as described below under "—Additional Information."

        You can find the definitions of certain terms used in this Description of Notes below under "—Certain Definitions." As used in this Description of Notes, all references to the "Company" mean Oregon Steel Mills, Inc. and its successors in accordance with the terms of the Indenture, and not any of its Subsidiaries. As of the date of the Indenture, all of the Company's existing Subsidiaries, other than New CF&I and CF&I, will be Unrestricted Subsidiaries (as such term is defined below under "—Certain Definitions"). Unrestricted Subsidiaries will not be subject to the restrictive covenants of the Indenture and the Security Documents.

General

        The Notes will be senior secured obligations of the Company limited to $305,000,000 aggregate principal amount, all of which were issued in the offering of the original notes. The Guarantors have, jointly and severally, unconditionally guaranteed, on a senior secured basis the Company's obligations under the Notes. See "—Guarantees." The obligations of the Company under the Notes and the obligations of the Guarantors under the Guarantees are secured by a lien on substantially all of the buildings, improvements, fixtures and equipment that comprise the mills located in Portland, Oregon, Pueblo, Colorado, and Napa, California, together with the real property on which the buildings are located, and certain other assets of the Company and the Guarantors, respectively, other than inventory, accounts receivable, equity interests in our Subsidiaries, intercompany indebtedness and other excluded assets, all as described below under "—Security." The Company and the Guarantors, respectively, are required to grant a first priority lien (subject only to "Permitted Liens" as such term is defined below under "—Certain Definitions") on such property and assets to secure the obligations of the Company under the Notes and the obligations of the Guarantors under the Guarantees.

Maturity, Interest And Principal

        The Notes will mature on July 15, 2009.

        Interest on the Notes will accrue at the rate of 10% per annum and will be payable semiannually on each January 15 and July 15, commencing January 15, 2003, to the holders of record of Notes at the close of business on January 1st and July 1st immediately preceding such interest payment date. Interest on the Notes will accrue from the most recent date to which interest has been paid or, if no

47


interest has been paid, from the Issue Date. Interest will be computed on the basis of a 360-day year comprised of twelve 30-day months.

Security

        The obligations of the Company under the Notes and the obligations of the Guarantors under the Guarantees are secured by a lien on substantially all of the buildings, improvements, fixtures and equipment that comprise the mills located in Portland, Oregon, Pueblo, Colorado, and Napa, California, together with the real property on which the buildings are located, and certain other assets of the Company and the Guarantors, respectively, other than inventory, accounts receivable, equity interests in our Subsidiaries, intercompany indebtedness and other excluded assets, all as described below. The Company and the Guarantors, respectively, are required to grant a first priority lien (subject only to "Permitted Liens" as such term is defined below under "—Certain Definitions") on such property and assets to secure the obligations of the Company under the Notes and the obligations of the Guarantors under the Guarantees.

        The Collateral includes the following property and assets owned by the Company and the Guarantors, as the case may be:

        The Company and the Guarantors also are required by the Indenture to secure the Notes with additional real property they acquire after the Issue Date, together with any improvements and fixtures thereon, except to the extent that such property, improvements and fixtures are Excluded Collateral.

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        The Collateral does not include the following (collectively, the "Excluded Collateral"):

        Notwithstanding anything to the contrary above, none of the property or assets described in the first five bullet points under "Collateral" above shall in any circumstances constitute or be deemed to constitute "Excluded Collateral."

        Furthermore, New CF&I is a holding company whose only material assets consist of the general partnership interest in CF&I and the capital stock of CWR, a Subsidiary of New CF&I, none of which general partnership interest or capital stock will be pledged as collateral for its Guarantee. As a result, the Guarantee of New CF&I initially will not be secured by any assets and will only be secured if and to the extent that New CF&I acquires any assets (other than Excluded Collateral) in the future.

        In addition, other than CF&I and New CF&I, none of the Company's existing Subsidiaries are Guarantors, and the Collateral does not include any assets of such Subsidiaries, and, as to CF&I and New CF&I, none of the Pueblo Outside the Fence Property or interests therein, other than the water rights appurtenant to and used on the Pueblo Inside the Fence Property described above and the easements appurtenant to the Pueblo Inside the Fence Property referenced above, or proceeds therefrom (except as described in the last bullet point above), is Collateral. The Company's existing Subsidiaries which are not Guarantors are Unrestricted Subsidiaries. In the aggregate, the Unrestricted Subsidiaries accounted for approximately 6.8% of the Company's consolidated total assets as of June 30, 2002 and approximately 9.5% and 3.1% of the Company's consolidated EBITDA and consolidated net income for the twelve months ended June 30, 2002.

        Value of the Collateral.    There can be no assurance that the proceeds of any sale of Collateral following an Event of Default with respect to the Notes would be sufficient to satisfy, or would not be substantially less than, amounts due on the Notes. See "Risk Factors—Risks Related to the Notes."

        No appraisals of any of the Collateral have been prepared by or on behalf of the Company in connection with this offering. The consolidated book value (net of depreciation) of the property, plant and equipment included in the Collateral as of June 30, 2002 was approximately $521.3 million.

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        The value of the Collateral in the event of a liquidation will depend upon market and economic conditions, the availability of buyers and similar factors. By its nature, some or all of the Collateral will be illiquid and may have no readily ascertainable market value. There also can be no assurance that the Collateral will be saleable and, even if saleable, the timing of its liquidation could be uncertain.

        The Collateral does not include any assets that constitute Excluded Collateral. Among other things, the Collateral does not include contracts, agreements, licenses, (including software grants) and other rights that by their express terms prohibit the assignment thereof or the grant of a security interest therein. Some of these may be material to the Company or to the Guarantors or may be necessary to operate our steelmaking, finishing or other production facilities, and such exclusion could have a material adverse effect on the Collateral. In addition, to the extent that liens, rights and easements granted to third parties encumber assets located on property owned by the Company or any Guarantor, such third parties have or may exercise rights and remedies with respect to the property subject to such liens that could adversely affect the value of the Collateral located at such site and the ability of the Trustee or the holders of the Notes to realize or foreclose on Collateral at such site.

        If an Event of Default occurs under the Indenture, the Trustee, on behalf of the holders of the Notes, in addition to any rights or remedies available to it under the Indenture, may take such actions as it deems advisable to protect and enforce its rights in the Collateral, including the institution of foreclosure proceedings. Except as may otherwise be required by applicable law, the proceeds received by the Trustee from any foreclosure will be applied by the Trustee first to pay costs and expenses of foreclosure (and related costs and expenses), fees and other amounts then payable to the Trustee under the Indenture and the Intercreditor Agreement and amounts due under the Security Documents, and thereafter to pay the principal of, premium, if any, and interest and Liquidated Damages, if any, on the Notes.

        The real property pledged as Collateral is subject to environmental risks, and these risks may reduce or eliminate the value of such Collateral. The Portland Mill and the Pueblo Mill are classified in the same manner as other similar steel mills in the industry as generating hazardous waste materials because the melting operation of the electric arc furnace produces dust that contains heavy metals. The Company and its Subsidiaries have been required to undertake certain actions to remediate environmental conditions at the Portland Mill, the Pueblo Mill and the Napa Pipe Mill. See "Risk Factors—Risks Related to Our Business." Under the Indenture, the Trustee may, prior to taking certain actions, request that holders of Notes provide an indemnification against the Trustee's costs, expenses and liabilities, which could include liabilities under environmental laws. See "Risk Factors—Risks Related to the Notes" and "—Concerning the Trustee."

        Accordingly, there can be no assurance that the proceeds of any sale of the Collateral pursuant to the Indenture and the Security Documents following an Event of Default would be sufficient to satisfy, or would not be substantially less than, amounts due on the Notes. If the proceeds of any sale of the Collateral were not sufficient to repay all amounts due on the Notes, the holders of the Notes (to the extent not repaid from the proceeds of the sale of the Collateral) would have only an unsecured claim against the remaining assets of the Company and the Guarantors. See "Risk Factors—Risks Related to the Notes" and "—Ranking."

        Release of Collateral.    The Collateral release provisions of the Indenture permit the release of Collateral without the substitution of additional Collateral under certain circumstances, including in connection with certain Asset Sales and Events of Loss. See "—Possession, Use and Release of Collateral" and "—Trust Moneys." As described under "—Repurchase at the Option of Holders—Disposition of Proceeds of Asset Sales," the Net Cash Proceeds of Asset Sales and Events of Loss may be required to be used to make an offer to purchase Notes, and, to the extent permitted thereunder, any unused Net Cash Proceeds will be retained by the Company, free and clear of the Liens of the Indenture and the Security Documents.

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        In addition, the Collateral will be released as security for the Notes and the Guarantees upon a Legal Defeasance or a Covenant Defeasance of the Notes or upon discharge of the Indenture (see "—Legal Defeasance and Covenant Defeasance" and "—Satisfaction and Discharge") and, upon the release of any Guarantor as described in the fifth paragraph under "—Guarantees" below, the Collateral pledged by such Guarantor will be released as security for its Guarantee.

        Certain Bankruptcy Limitations.    The right of the Trustee to repossess and dispose of the Collateral upon the occurrence of an Event of Default is likely to be significantly impaired by applicable bankruptcy law if a bankruptcy proceeding were to be commenced by or against the Company or any of its Subsidiaries (including any Guarantor) prior to the Trustee having repossessed and disposed of the Collateral. Under the Bankruptcy Code, a secured creditor is prohibited from repossessing its security from a debtor in a bankruptcy case, or from disposing of security repossessed from such debtor, without bankruptcy court approval. Moreover, the bankruptcy court may permit the debtor in certain circumstances to continue to retain and to use collateral owned as of the date of the bankruptcy filing (and the proceeds, products, offspring, rents or profits of the collateral, to the extent provided by the applicable security documents and nonbankruptcy law) even though the debtor is then in default, so long as the court determines that the interest of the secured creditor in its collateral is "adequately protected," either as of the case's commencement or by the delivery of additional collateral, or otherwise, against diminution in the collateral's value while the case is pending.

        The bankruptcy court has broad discretion in determining whether and to what extent to require a debtor to provide additional "adequate protection" to a creditor. It is therefore impossible to predict how, in the event of the Company's or a Guarantor's bankruptcy, a court would rule on a request to use the Collateral or a request for additional "adequate protection."

        In addition, in the event of such a bankruptcy, it is impossible to predict how long payments under the Notes would be delayed, whether the Trustee would be permitted to repossess and dispose of any of the Collateral, or whether or to what extent Noteholders would be compensated for any diminution in the Collateral's value while the case was pending.

        Furthermore, if a bankruptcy court determines the value of the Collateral is not sufficient to repay all amounts due on the Notes, the holders of Notes would hold secured claims to the extent of the value of the Collateral to which the holders of Notes are entitled, and would hold unsecured claims with respect to any such shortfall. The Bankruptcy Code does not permit the payment and/or accrual of post-petition interest, costs and attorneys' fees during a debtor's bankruptcy case unless the claims are oversecured or the debtor is solvent at the time of reorganization.

        The obligations of each Guarantor under its Guarantee of the Notes, and the grant by each Guarantor of a lien on certain of its assets to secure its obligations under its Guarantee, may be subject to review under various federal and state laws for the protection of creditors, including, without limitation, laws governing fraudulent transfers. To the extent that the obligations of any Guarantor under its Guarantee, or the lien on Collateral granted by any Guarantor, were held to be unenforceable as a fraudulent transfer or for any other reason, the holders of Notes would cease to have any direct claim against that Guarantor and or a lien against its assets. See "Risk Factors—Risks Related to the Notes—A court could cancel our subsidiaries' guarantees of the notes under fraudulent transfer law" and "—Ranking."

        In an attempt to avoid this result, the Indenture will limit the liability of each Guarantor on its Guarantee to the maximum amount that the Guarantor can incur without risk that the Guarantee will be subject to avoidance as a fraudulent transfer. We cannot assure you that this limitation will protect the Guarantees from fraudulent transfer attack or, if it does, that the guarantees will be in amounts sufficient, if necessary, to pay the Notes when due. In addition, any limitation on the amounts payable by a Guarantor under its Guarantee under that provision will result in a corresponding limitation on the Trustee's ability to realize on the Collateral pledged by that Guarantor.

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        Other Limitations.    The right of the Trustee to repossess and dispose of the Collateral upon the occurrence of an Event of Default under the Indenture, in the case of real property Collateral, also could be significantly impaired by restrictions under state law. See "Risk Factors—Risks Related to the Notes."

        Dispositions of Collateral also may be subject to delay pursuant to the Intercreditor Agreement to be entered into with the Revolver Agent under the Credit Facility. See "—Intercreditor Agreement." Under the Intercreditor Agreement, in the event that action has been taken to enforce the rights of holders of the Notes with respect to the Collateral and the Trustee has obtained possession and control of the Collateral, the Revolver Agent may enter upon all or any portion of the property of the Company or any of the Guarantors for 120 days in order to collect accounts receivable and remove, sell or otherwise dispose of the Revolver Collateral, and may also store such Revolver Collateral on the property of the Company or any of the Guarantors. The right of the Revolver Agent to enter upon the property as aforesaid could delay liquidation of the Collateral.

Guarantees

        The Company's obligations under the Notes are unconditionally guaranteed, jointly and severally, on a senior secured basis by the Guarantors. See "—Security" above. Under the Indenture, each of our existing and future Subsidiaries that is not designated as an Unrestricted Subsidiary must be a Guarantor.

        CF&I and New CF&I are the initial Guarantors. In addition, the Indenture provides that any person which would become a Subsidiary of the Company after the Issue Date is required to become a Guarantor, unless such Subsidiary is designated as an Unrestricted Subsidiary. See "—Certain Covenants—Additional Guarantors," "—Unrestricted Subsidiaries; Designation of Unrestricted Subsidiaries" and the definition of Unrestricted Subsidiary under "—Certain Definitions."

        However, the Company's other existing Subsidiaries which will not be Guarantors will be Unrestricted Subsidiaries. In the aggregate, the Company's existing Unrestricted Subsidiaries accounted for approximately 6.8% of the Company's consolidated total assets as of June 30, 2002 and approximately 9.5% and 3.1% of the Company's consolidated EBITDA and consolidated net income for the twelve months ended June 30, 2002.

        The Notes will be effectively subordinated to Indebtedness of any Unrestricted Subsidiaries. See "—Ranking" below.

        Except as provided under "—Certain Covenants" and "—Merger, Sale of Assets, Etc." below, the Company is not restricted from selling or otherwise disposing of any Guarantor. The Indenture will provide that, in the event of a sale, transfer or other disposition of all of the Capital Stock of any Guarantor (or its parent) owned by the Company and its Subsidiaries, by way of merger, consolidation or otherwise, in each case to a person which is not the Company or a Subsidiary or Affiliate of the Company, such Guarantor will be released from all of its obligations under its Guarantee, the Indenture, its Security Documents and the Intercreditor Agreement; provided, that:

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        Prior to any transaction which will result in the release of a Guarantor from its Guarantee as described above, the Company will deliver an Officers' Certificate to the Trustee stating that such transaction will be effected in accordance with the provisions of the Indenture in order to obtain the release of such Guarantor.

Ranking

        The Notes are senior secured obligations of the Company (to the extent of the value of the Collateral owned by the Company), and the Guarantees are senior secured obligations of the Guarantors (in each case, to the extent of the value of the Collateral owned by such Guarantor). The Notes and the Guarantees, except as described below, rank senior in right of payment to all existing and future subordinated indebtedness of the Company and the Guarantors, respectively, and pari passu in right of payment with all existing and future senior indebtedness of the Company and the Guarantors, respectively.

        The Notes will be effectively subordinated to all of the Company's and the Guarantors' existing and future Indebtedness (including the Credit Facility) secured by assets other than the Collateral (to the extent of the value of such assets). The Notes and the Guarantees will be effectively subordinated to Indebtedness under the Credit Facility to the extent of the value of the Revolver Collateral. Borrowings and other obligations under the new $75 million Credit Facility will be secured by a first priority lien on the Revolver Collateral owned by the Company, New CF&I, CF&I and CWR, the borrowers under the Credit Facility, and such borrowings may in the future be secured by a lien on Revolver Collateral owned by other Subsidiaries of the Company. Borrowings and other obligations under the Credit Facility initially will be guaranteed by Oregon Steel de Guayana, Inc., a Delaware corporation, OSM Glassification, Inc., an Oregon corporation, OSM Distribution, Inc., a Delaware corporation, and Oregon Steel Mills Processing, Inc., a Delaware corporation. Such guarantees initially will be secured by the Revolver Collateral owned by such guarantors, and may in the future be guaranteed by other Subsidiaries of the Company and secured by Revolver Collateral owned by such other Subsidiaries.

        In addition, the Indenture permits the Company and the Guarantors to create Liens on certain of their assets, including Liens securing purchase money indebtedness, and the Notes and the Guarantees will be effectively subordinated to such obligations secured by such Permitted Liens, and any assets secured by permitted purchase money indebtedness shall constitute Excluded Collateral. See the definitions of "Permitted Liens" and "Excluded Assets" under "—Certain Definitions."

        The Notes also will be effectively subordinated to Indebtedness of any Unrestricted Subsidiaries. The Company's rights and the rights of its creditors, including holders of the Notes, to participate in the assets of any Unrestricted Subsidiary upon such Unrestricted Subsidiary's liquidation or recapitalization will be subject, in the case of any Unrestricted Subsidiary, to the prior claims of such Unrestricted Subsidiary's creditors. To the extent that the Company itself may be a creditor with recognized claims against the Unrestricted Subsidiary, the claims of the Company still would be effectively subordinated to any mortgage or other liens on the assets of such Unrestricted Subsidiary and would be subordinated to any Indebtedness of such Unrestricted Subsidiary senior to that held by the Company.

        The Company also is and will be dependent upon the distribution of the earnings of its Subsidiaries, whether in the form of dividends, advances or payments on account of intercompany obligations, to service its debt obligations, including the Notes. The Company's Subsidiaries are separate and distinct legal entities and, except for the Guarantors, have no obligation, contingent or otherwise, to pay any amounts due on the Notes or to make any funds available therefor. In addition, dividends, loans and advances from Subsidiaries to the Company may be subject to contractual and

53


other restrictions and are contingent upon the results of operations of such Subsidiaries and are subject to various business considerations. See "Risk Factors—Risks Related to the Notes."

        Some of the Company's active Subsidiaries are not wholly owned. Specifically, at June 30, 2002: (1) a Subsidiary of Stelco Inc., a Canadian steel producer, held a 40% general partnership interest in Camrose, the Subsidiary of the Company which owns the Camrose Pipe Mill; (2) Nippon Steel and Nissho Iwai, directly or through Subsidiaries, held, in the aggregate, 13% of the outstanding common stock of New CF&I, the Subsidiary of the Company through which the Company holds its general partnership interest in CF&I (0.48% of which is owned by Nippon Steel); and (3) Oregon Feralloy Partners, a joint venture between a wholly owned Subsidiary of the Company and Feralloy Oregon Corporation ("Feralloy") is owned 60% by the Company and 40% by Feralloy, the managing partner of the joint venture. As a result, the Company may owe a fiduciary duty to the holders of minority interests in those Subsidiaries and therefore may be unable to exercise unfettered control over such Subsidiaries. In addition, dividends or other distributions paid or made by such Subsidiaries generally must be paid or made on a pro rata basis to all holders of equity interests in such Subsidiaries.

        At June 30, 2002, after giving effect to the sale of the original notes, the application of the net proceeds therefrom as described in "Use of Proceeds" (including the redemption of all of our outstanding 11% First Mortgage Notes due 2003 and the refinancing of the Old Credit Agreement), as if such transactions had occurred on that date, we would have had outstanding an aggregate of $311.7 million of Indebtedness, including the Notes. The Notes would have ranked pari passu in right of payment with $9.9 million of such Indebtedness, but because of the security interests in the Collateral described above, the Notes would have been effectively senior to all of such Indebtedness to the extent of the value of the Collateral. With respect to amounts due on the Notes in excess of the value of the Collateral, the Notes would have been effectively subordinated in right of payment to $525,000 of Indebtedness of the Company and its Subsidiaries. Such Indebtedness represents US$525,000 of borrowings by Camrose outstanding under its Can$15 million credit facility which is secured by Camrose's assets. Any Indebtedness the Company incurs under the Credit Facility will be senior in right of payment to the Notes to the extent of the value of the Revolver Collateral.

Intercreditor Agreement

        Concurrently with the closing of the offering of the original notes, the Trustee, on behalf of the holders of Notes, entered into an Intercreditor Agreement with the Company, New CF&I, CF&I, CWR and the Revolver Agent under the Credit Facility. The Intercreditor Agreement provides, among other things, that:

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        The right of the Revolver Agent to enter upon the property as aforesaid could delay liquidation of the Collateral. See "Risk Factors—Risks Related to the Notes" and "—Security."

Optional Redemption

        The Notes are not redeemable at the option of the Company except as provided in the immediately succeeding two paragraphs.

        At any time on or after July 15, 2006, the Notes will be redeemable at the option of the Company, in whole or in part, on not less than 30 days' nor more than 60 days' prior notice, at the redemption prices (expressed as percentages of principal amount) set forth below, plus accrued and unpaid interest and Liquidated Damages, if any, to the redemption date, if redeemed during the 12-month period beginning July 15th of the years indicated below:

Redemption Year
   Redemption Price
2006   105.000%
2007   102.500%
2008 and thereafter   100.000%

        At any time on or prior to July 15, 2005, the Company may on any one or more occasions redeem up to 35% of the aggregate principal amount of Notes at a redemption price of 110.000% of the principal amount thereof, plus accrued and unpaid interest and Liquidated Damages, if any, to the redemption date, with the Net Cash Proceeds of one or more Qualified Equity Offerings; provided, that:

Mandatory Redemption

        The Notes will not be entitled to the benefit of any mandatory sinking fund.

Repurchase at the Option of Holders

        Upon the occurrence of a Change of Control, the Company shall be obligated to make an offer to purchase (a "Change of Control Offer"), on a business day (the "Change of Control Purchase Date") not more than 60 days nor less than 30 days following the date of mailing of the Change of Control Notice (as defined below) to holders of Notes, all of the then outstanding Notes at a purchase price (the "Change of Control Purchase Price") equal to 101% of the principal amount thereof plus accrued and unpaid interest and Liquidated Damages, if any, to the Change of Control Purchase Date. The Company shall be required to purchase all Notes properly tendered into the Change of Control Offer

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and not withdrawn. The Change of Control Offer is required to remain open for at least 20 business days and until 5:00 p.m., New York City time, on the Change of Control Purchase Date.

        In order to effect such Change of Control Offer, the Company shall, not later than the 30th day after the occurrence of the Change of Control, mail to each holder of Notes notice of the Change of Control Offer (the "Change of Control Notice"), describing the transaction or transactions that constitute the Change of Control and offering to repurchase the Notes on the Change of Control Purchase Date, pursuant to the procedures required by the Indenture and described in such notice.

        On the Change of Control Purchase Date, the Company will, to the extent lawful:

        The paying agent shall promptly mail to each holder of Notes or portions thereof so tendered the Change of Control Purchase Price (including accrued and unpaid interest and Liquidated Damages, if any) for such Notes, and the Trustee will promptly authenticate and mail (or cause to be transferred by book entry) to each holder a new Note equal in principal amount to any unpurchased portion of the Notes surrendered, if any; provided, that each such new Note will be in a principal amount of $1,000 or an integral multiple thereof.

        The occurrence of the events constituting a Change of Control under the Indenture could result in an event of default under the Credit Facility (which will permit borrowings up to the aggregate principal amount of the Credit Facility, but under which no borrowings are expected to be outstanding upon completion of this offering) and under other credit facilities and debt instruments of the Company and its Subsidiaries (under which borrowings of approximately $525,000 in aggregate principal amount (excluding amounts outstanding under the Old Credit Agreement and excluding intercompany debt) were outstanding as of June 30, 2002). Following such an event of default under the Credit Facility, the lenders under the Credit Facility or such other credit facilities and debt instruments would have the right to require the immediate repayment of the indebtedness thereunder in full, and might have the right to require such repayment prior to the Change of Control Purchase Date on which the Company would be required to repurchase the Notes.

        The Credit Facility also expressly provides that the occurrence of a "change of control" (as defined in the Credit Facility) will constitute an event of default under the Credit Facility. The definition of "change of control" under the Credit Facility is broader than that in the Indenture. Thus, the lenders under the Credit Facility would be entitled to require repayment of the indebtedness thereunder due to events constituting a "change of control" (as defined therein) without such events constituting a Change of Control for purposes of the Indenture. However, such events may constitute an Event of Default under the Indenture.

        In addition, the Credit Facility will prohibit the Company from purchasing any of the Notes. Any future credit agreements or other debt instruments may contain similar prohibitions. In the event a Change of Control occurs at a time when the Company is prohibited from purchasing Notes, the Company could seek the consent of the lenders of such indebtedness to the purchase of Notes or could attempt to refinance the borrowings that contain such prohibition. If the Company does not obtain such a consent or repay such borrowings, the Company will remain prohibited from purchasing Notes.

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In such a case, the Company's failure to purchase tendered Notes would constitute an immediate Event of Default under the Indenture.

        An Event of Default under the Indenture would result in an event of default under the Credit Facility and could result in the acceleration of other indebtedness pursuant to cross-default clauses in other credit facilities and debt instruments. Acceleration of such indebtedness, pursuant to an event of default, change of control or otherwise, or requirements that such indebtedness be repaid prior to payment of the Change of Control Purchase Price, could have a material adverse effect on the Company's ability to pay the Change of Control Purchase Price (including accrued and unpaid interest and Liquidated Damages) with respect to the Notes. There also can be no assurance that the Company and the Guarantors will have adequate resources to repay or refinance all indebtedness owing under the Credit Facility or other indebtedness upon the occurrence of any "change of control" or other event of default thereunder or upon any Event of Default under the Indenture or to fund the purchase of the Notes upon a Change of Control. See "Risk Factors—Risks Related to the Notes."

        The provisions described above that require the Company to make a Change of Control Offer following a Change of Control will be applicable regardless of whether or not any other provisions of the Indenture are applicable.

        The provisions of the Indenture relating to a Change of Control in and of themselves may not afford holders of the Notes protection in the event of a highly leveraged transaction, reorganization, restructuring, merger or similar transaction involving the Company that may adversely affect holders of the Notes if such transaction is not the type of transaction included within the definition of a Change of Control. See "—Certain Definitions." A transaction involving the Company's management or its affiliates likewise will result in a Change of Control only if it is the type of transaction specified by such definition. The existence of the foregoing provisions relating to a Change of Control may or may not deter a third party from seeking to acquire the Company in a transaction which constitutes a Change of Control.

        The definition of Change of Control includes a phrase relating to the sale, assignment, conveyance, transfer, lease or other disposition of "all or substantially all" of the assets of the Company or of the Company and the Guarantors, taken as a whole. The phrase "all or substantially all" likely will be interpreted under applicable state law and will be dependent upon particular facts and circumstances. As a result, there may be a degree of uncertainty in ascertaining whether a sale, assignment, conveyance, transfer, lease or other disposition of "all or substantially all" of the assets of the Company or of the Company and the Guarantors, taken as a whole, has occurred. Accordingly, the ability of a holder of Notes to require the Company to repurchase such Notes as a result of a sale, assignment, conveyance, transfer, lease or other disposition of less than all of the assets of the Company or of the Company and the Guarantors, taken as a whole, may be uncertain.

        There can be no assurance that the Company will have sufficient funds available to acquire Notes tendered upon the occurrence of a Change of Control.

        The Company shall not be required to make a Change of Control Offer upon a Change of Control if a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements applicable to a Change of Control Offer made by the Company (including the same or a higher Change of Control Purchase Price) and has purchased all Notes validly tendered and not withdrawn pursuant to such Change of Control Offer.

        Any Change of Control Offer will comply with Regulation 14E under the Exchange Act and any other applicable federal and state securities laws and regulations. To the extent that the provisions of any applicable securities laws or regulations conflict with the provisions of this covenant, the Company and its Subsidiaries shall comply with such applicable securities laws and regulations and shall not be deemed by virtue of such compliance to have breached their obligations under this covenant.

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        The Company will not, and will not permit any of the Guarantors to, make any Asset Sale unless:

        The foregoing subparagraphs (a) and (b) shall not apply to an Event of Loss; provided, however, that Net Cash Proceeds from an Event of Loss shall be used as follows: (1) first, the Company may use any or all of such Net Cash Proceeds to restore, rebuild, repair or replace the assets subject to such Event of Loss with a comparable asset and (2) then, to the extent any Net Cash Proceeds from an Event of Loss are not used as described in the preceding clause (1), all such remaining Net Cash Proceeds from such Event of Loss shall be reinvested or used as provided in subparagraphs (i) and (ii) of the next succeeding paragraph.

        Any such Net Cash Proceeds from an Asset Sale shall be applied within 365 days of the Asset Sale which generated such Net Cash Proceeds as follows:

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        During such 365 day period, pending the final application of the Net Cash Proceeds from the Asset Sale, the Company may use such Net Cash Proceeds to temporarily reduce borrowings under the Credit Facility or otherwise invest such Net Cash Proceeds in any manner that is not prohibited by the Indenture. Notwithstanding the immediately preceding sentence, any portion of the Net Cash Proceeds that is not used as described in subparagraph (i) or (ii) of the immediately preceding paragraph within such 365 day period shall constitute "Excess Proceeds" subject to disposition as provided below.

        When the aggregate amount of Excess Proceeds equals or exceeds $10,000,000, the Company shall make an offer to purchase (an "Asset Sale Offer"), from all holders of the Notes, on a date (the "Asset Sale Purchase Date") not more than 40 business days after the date that the amount of Excess Proceeds equals or exceeds $10,000,000, the maximum aggregate principal amount (expressed as a multiple of $1,000) of the outstanding Notes that may be purchased with such Excess Proceeds, at a price in cash equal to 100% of the principal amount thereof plus accrued and unpaid interest and Liquidated Damages, if any, to the purchase date. The Asset Sale Offer is required to remain open for at least 20 business days and until 5:00 p.m., New York City time, on the Asset Sale Purchase Date.

        To the extent that the aggregate principal amount of Notes tendered pursuant to an Asset Sale Offer is less than the maximum aggregate principal amount which may be purchased with such Excess Proceeds, any such remaining Excess Proceeds shall be retained by the Company, free and clear of the Liens of the Indenture and the Security Documents, any such Excess Proceeds shall not be subject to the provisions of this covenant and the Company may use such remaining Excess Proceeds for any purposes not otherwise prohibited by the Indenture. If the aggregate principal amount of Notes validly tendered and not withdrawn by holders thereof exceeds the maximum aggregate principal amount which may be purchased with such Excess Proceeds, Notes to be purchased will be selected on a pro rata basis. Upon completion of such Asset Sale Offer in accordance with this covenant, the amount of Excess Proceeds shall be reset to zero.

        All Collateral Proceeds and amounts which are deemed to be Collateral Proceeds shall be paid directly by the purchaser thereof to the Trustee and shall be deposited by the Trustee in the Collateral Account pending their application in accordance with this covenant or their release in accordance with the provisions described under "—Possession, Use and Release of Collateral" and "—Trust Moneys."

        Any Asset Sale Offer will comply with Regulation 14E under the Exchange Act and any other applicable federal and state securities laws and regulations. To the extent that the provisions of any applicable securities laws or regulations conflict with the provisions of this covenant, the Company and its Subsidiaries shall comply with such applicable securities laws and regulations and shall not be deemed by virtue of such compliance to have breached their obligations under this covenant.

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        Deemed Asset Sales.    In the event that the Company shall, in any transaction or series of transactions, sell, assign, convey, transfer, lease or otherwise dispose of substantially all (but not all) of its properties and assets as an entirety in a transaction permitted under "—Merger, Sale of Assets, Etc.," or if the Company shall cause or permit any of the Guarantors to enter into any such transaction or series of transactions if such transaction or series of transactions, in the aggregate, would result in a sale, assignment, conveyance, transfer, lease or other disposition of substantially all (but not all) of the properties and assets of the Company or of the Company and the Guarantors taken as a whole in a transaction permitted under "—Merger, Sale of Assets, Etc.," the Surviving Entity (as described under "—Merger, Sale of Assets, Etc.") shall be deemed to have sold the properties and assets of the Company and the Guarantors not so transferred for purposes of this covenant and shall comply with the provisions of this covenant with respect to such deemed sale as if it were an Asset Sale. The Fair Market Value of such properties and assets of the Company and the Guarantors deemed to be sold shall be deemed to be the Net Cash Proceeds for purposes of the Asset Sale provisions of the Indenture. In the event that any Guarantor shall, in any transaction or series of transactions, sell, assign, convey, transfer, lease or otherwise dispose of substantially all (but not all) of its properties and assets in a transaction permitted under the fifth paragraph under "—Guarantees," the Surviving Person shall be deemed to have sold the properties and assets of such Guarantor not so transferred for purposes of this covenant and shall comply with the provisions of this covenant with respect to such deemed sale as if it were an Asset Sale. The Fair Market Value of such properties and assets of such Guarantor deemed to have been sold shall be deemed to be the Net Cash Proceeds for purposes of the Asset Sale provisions of the Indenture.

        In the event of a merger or consolidation of a Guarantor, sale of the Capital Stock of a Guarantor or other transactions as a result of which a Guarantor will be released from its Guarantee as provided in the fifth paragraph under "—Guarantees," then, anything in the Indenture to the contrary notwithstanding, (a) such transaction shall be deemed to be an Asset Sale and shall be subject to and shall be made only in compliance with the foregoing covenant and (b) the Net Cash Proceeds of such transaction shall be allocated between Collateral Proceeds and Non-Collateral Proceeds as follows: (i) such Net Cash Proceeds shall be multiplied by a fraction (A) the numerator of which is the Fair Market Value of the Collateral owned by such Guarantor and (B) the denominator of which is the Fair Market Value of all property and assets (including Collateral) owned by such Guarantor, and the resulting amount shall be deemed Collateral Proceeds, and (ii) the remainder of such Net Cash Proceeds shall be deemed Non-Collateral Proceeds.

        The Credit Facility prohibits the Company from purchasing any Notes. Any future credit agreements or other debt instruments may contain similar prohibitions. In the event that the Company is required to make an Asset Sale Offer at a time when the Company is prohibited from purchasing Notes, the Company could seek the consent of the lenders of such indebtedness to the purchase of Notes, use the proceeds of the Asset Sale (to the extent permitted by the Indenture) to pay down such indebtedness or could attempt to refinance the borrowings that contain such prohibition. If the Company does not obtain such a consent or repay such borrowings, the Company will remain prohibited from purchasing Notes. In such a case, the Company's failure to purchase tendered Notes would constitute an immediate Event of Default under the Indenture. An Event of Default under the Indenture would result in an event of default under the Credit Facility and could result in the acceleration of other indebtedness pursuant to cross-default clauses in other credit facilities and debt instruments.

        The Credit Agreement also prohibits the Company and the Guarantors from selling, transferring, conveying or leasing any of their properties, assets or rights other than sales in the ordinary course of business of inventory and other than certain other permitted sales. As a result, some Asset Sales permitted by the Indenture may not be permitted by the Credit Facility and therefore would constitute

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an event of default under the Credit Facility. Any future credit agreements or other debt instruments may contain similar prohibitions.

Selection and Notice

        In the event that less than all of the Notes are to be redeemed at any time, selection of such Notes for redemption or other repurchase shall be made by the Trustee on a pro rata basis, by lot or by such method as the Trustee shall deem fair and appropriate; provided, however, that no Notes shall be redeemed or otherwise repurchased except in a principal amount of $1,000 or an integral multiple of $1,000. Notice of redemption or other repurchase shall be mailed by first class mail at least 30 days but not more than 60 days before the redemption or other repurchase date to each holder of Notes to be redeemed or repurchased at its registered address. If any Note is to be redeemed or repurchased in part only, the notice of redemption or other repurchase that relates to such Note shall state the portion of the principal amount thereof to be redeemed or repurchased. A new Note in a principal amount equal to the portion not redeemed or repurchased will be issued in the name of the holder upon surrender for cancellation of the original Note. On and after the redemption or other repurchase date, interest will cease to accrue on Notes or portions of Notes called for redemption or repurchase, unless the Company defaults in the payment of the redemption or other repurchase price.

Certain Covenants

        The Indenture also contains the following covenants, among others:

        The Company will not, and will not permit any of the Guarantors to, directly or indirectly, incur any Indebtedness (including, without limitation, any Redeemable Capital Stock or any Acquired Indebtedness) unless, at the time of such incurrence:

        Notwithstanding the foregoing, the Company and the Guarantors may, to the extent specifically set forth below, incur any or all of the following:

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62

63

        For purposes of determining compliance with this covenant, in the event that an item of Indebtedness meets the criteria of more than one of the categories of permitted Indebtedness described in clauses (d) through (n) above, or is entitled to be incurred pursuant to the first paragraph of this covenant, the Company shall, in its sole discretion, classify such item of Indebtedness in any manner that complies with this covenant (provided, that all Indebtedness under the Credit Facility outstanding on the Issue Date shall be deemed to have been incurred pursuant to clause (c) above and all Indebtedness evidenced by the Notes, the Indenture, the Guarantees and the Security Documents shall be deemed to have been incurred pursuant to clause (a) above) and may later reclassify such Indebtedness into any one or more of the categories described in any of clauses (d) through (n) above (provided, that at the time of reclassification it meets the criteria in such category or categories).

        The Company will not, and will not permit any of the Guarantors to, directly or indirectly:

(such payments or Investments described (and not excluded) in the preceding clauses (a), (b), (c) and (d) are collectively referred to as "Restricted Payments"), unless, at the time of and after giving effect

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to the proposed Restricted Payment (the amount of any such Restricted Payment, if other than cash, shall be the Fair Market Value on the date of such Restricted Payment of the property, assets or securities proposed to be transferred or issued by the Company or such Guarantor, as the case may be, pursuant to such Restricted Payment):

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For purposes of clause (C)(2) above, the value of the aggregate Net Cash Proceeds received by the Company upon the issuance of Capital Stock upon the conversion of convertible Indebtedness or upon the exercise of options, warrants or rights will be the Net Cash Proceeds received upon the issuance of such Indebtedness, options, warrants or rights plus the incremental cash amount received by the Company upon the conversion or exercise thereof, in each case, after the Issue Date. As used in clause (C)(3) above, "cash return of capital" with respect to an Investment means the sum of (x) the aggregate amount of any dividends, payments of interest on Indebtedness, repayments of loans or advances or other distributions, in each case, in cash, with respect to, and (y) the aggregate net proceeds received by the Company and the Guarantors upon the sale or other disposition of, such Investment after the Issue Date.

        None of the foregoing provisions will prohibit:

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        In addition, none of the foregoing provisions will prohibit the Company or any of the Guarantors from continuing to own any Investment which it owned on the Issue Date.

        Not later than the date of making any Restricted Payment pursuant to clause (a), (b) or (c) of the first paragraph of this covenant or any Restricted Payment in excess of (or series of Restricted Payments in the aggregate in excess of) $2,500,000, the Company shall deliver to the Trustee an Officers' Certificate stating that such Restricted Payment is permitted and setting forth the basis upon which the calculations required by this "Limitation on Restricted Payments" covenant were computed, together with a copy of any opinion or appraisal required by the Indenture.

        The Company will not, and will not permit any of the Guarantors to, directly or indirectly, (a) incur or suffer to exist or become effective any Lien of any kind against or upon (i) any item of Collateral (whether owned on the Issue Date or thereafter acquired) or any income, profit or proceeds therefrom or (ii) any other property or assets of the Company or any of the Guarantors (whether owned on the Issue Date or thereafter acquired) or any income, profit or proceeds therefrom, or (b) assign or convey any right to receive any such income, profit or proceeds therefrom, except, in the case of each of clauses (a) and (b), for Permitted Liens.

        Notwithstanding the foregoing, the Company and the Guarantors may incur Liens on property or assets referred to in clause (a)(ii) above or income, profit or proceeds therefrom if (x) in the case of Liens securing Subordinated Indebtedness, the Notes and the Guarantees are secured contemporaneously therewith or prior thereto by a Lien on such property, assets, income, profits and proceeds and each such Lien securing such Subordinated Indebtedness is by its terms expressly subordinate to and junior in right of payment and in all other respects to the Liens on such property,

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assets, income, profits and proceeds securing the Notes and the Guarantees with the same relative subordination that such Subordinated Indebtedness has with respect to the Notes and the Guarantees and (y) in all other cases, the Notes are equally and ratably secured contemporaneously therewith or prior thereto with the obligations so secured.

        The Company will not, and will not permit any of the Guarantors to, incur any Indebtedness that is contractually subordinated to any Indebtedness of the Company or any Guarantor unless the Indebtedness being incurred is contractually subordinated to the Notes at least to the same extent as it is to such other Indebtedness.

        The Company (a) will not permit any of the Guarantors to issue any Capital Stock (other than to the Company or to a Guarantor) and (b) will not permit any person (other than the Company or a Guarantor) to own any Capital Stock of any Guarantor; provided, that:

        The Company will not, and will not permit any of the Guarantors to, directly or indirectly, make, enter into or suffer to exist any transaction or series of related transactions (including without limitation (i) any sale, transfer, disposition, purchase, exchange or lease of assets, property or services, (ii) any contracts, agreements or other arrangements, (iii) any payments, Investments, loans or advances, (iv) any other transaction or series of related transactions or (v) any amendments, supplements, modifications or waivers of or with respect to any of the foregoing), in each case, to, from, with, or for the benefit of, any Affiliate of the Company (other than an Affiliate which is a Guarantor) or any Interested Person (each of the foregoing, an "Affiliate Transaction"), unless:

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provided, that clauses (b)(x) and (y) of this covenant shall not be applicable with respect to transactions entered into in the ordinary course of business (A) between the Company or any of the Guarantors, on the one hand, and Camrose, on the other hand, or (B) between or among any of the Company, Camrose, Canadian National Steel, CPC, New CF&I or CF&I; in each case under clause (A) or (B), provided that such transactions are permitted pursuant to the terms of the Camrose Partnership Agreement, the New CF&I Stockholders Agreement and the CF&I Partnership Agreement, as applicable, in each case as in effect on the Issue Date (and not giving effect to any subsequent amendment or modification thereof).

        Notwithstanding the foregoing, the following shall not be deemed to be Affiliate Transactions:

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        The Company will not, and will not permit any of the Guarantors to, directly or indirectly, incur, create or otherwise cause or suffer to exist or become effective any encumbrance or restriction on the ability of any Guarantor to:

        However, the preceding restrictions will not apply to any such encumbrances or restrictions existing under or by reason of:

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        The Company will not, and will not permit any of the Guarantors to, enter into any Sale-Leaseback Transaction with respect to any property or assets of the Company or any of the Guarantors.

        Notwithstanding the foregoing, the Company and the Guarantors may enter into Sale-Leaseback Transactions with respect to property or assets which do not constitute Collateral and which property or assets are acquired or constructed after the Issue Date if:

        The Indenture provides that the Company will not, and will not permit any Guarantor to, directly or indirectly, establish or acquire a new Subsidiary, as the case may be, unless either:

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        Following compliance with clauses (b)(i), (ii) and (iii) above, and thereafter, such Subsidiary shall be a Guarantor for all purposes of the Indenture.

        For purposes of this covenant, the designation of any Unrestricted Subsidiary as a Guarantor shall be deemed to be the establishment of a new Subsidiary and shall be required to comply with subparagraph (b) above. The Indenture provides that the Company will not permit to exist any Subsidiary unless either (a) such Subsidiary has been designated as an Unrestricted Subsidiary as described under "Unrestricted Subsidiaries; Designation of Subsidiaries" below or (b) such Subsidiary has become a Guarantor in accordance with the Indenture. The Indenture also provides that the Company will not permit any Unrestricted Subsidiary to own any Capital Stock of a Guarantor.

        The Indenture provides that the Company will not, and will not permit any of the Guarantors to, take or omit to take any action which action or omission could reasonably be expected to have the result of adversely affecting or impairing the Lien in favor of the Trustee (or, in the case of property or assets subject to a Mortgage, the Trustee or another trustee under such Mortgage) for the benefit of the holders of the Notes in the Collateral, except for the incurrence or existence of Permitted Liens as expressly permitted by the Indenture, the Intercreditor Agreement and the Security Documents. The Indenture further provides that the Company will not, and will not permit any of the Guarantors, to grant to any person (other than the Trustee (or, in the case of property or assets subject to a Mortgage, the Trustee or another trustee under such Mortgage) for the benefit of the holders of the Notes) any interest whatsoever in the Collateral except as expressly permitted by the Indenture, the Intercreditor Agreement and the Security Documents.

        The Indenture provides that the Company will not, and will not permit any Guarantor to, enter into or consent to any amendment, supplement, waiver or other modification of the CF&I Partnership Agreement or the New CF&I Stockholders Agreement which (i) in any manner would be adverse to the interests of the holders of the Notes or the Trustee (it being understood that the admission by CF&I of one or more additional or substitute limited partners shall not be deemed adverse to the interests of the holders of the Notes or the Trustee so long as made in compliance with the other provisions of the Indenture, including the immediately following clause (ii)) or (ii) in the case of the CF&I Partnership Agreement, would increase the amount of cash or other property distributable to, or the amount of profits allocated to, or any voting or management rights of, any limited partner of CF&I or the limited partners of CF&I in the aggregate, or decrease the amount of cash or other property distributable to, or the amount of profits allocated to, or any voting or management rights of, the general partner of CF&I.

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        The Indenture provides that, whether or not required by the Commission, so long as any notes are outstanding, the Company will furnish to the holders of Notes, within the time periods specified in the Commission's rules and regulations:

        In addition, whether or not required by the Commission, the Company will file a copy of all of the information and reports referred to in subparagraphs (a) and (b) above with the Commission for public availability within the time periods specified in the Commission's rules and regulations (unless the Commission will not accept such a filing) and make such information available to securities analysts and prospective investors upon request; provided, that any information accepted for filing by the Commission shall be deemed to have been provided to the holders of Notes for purposes hereof.

Merger, Sale of Assets, Etc.

        The Company will not (a) directly or indirectly, in any transaction or series of transactions, merge, consolidate or amalgamate with or into, or sell, assign, convey, transfer, lease or otherwise dispose of all or substantially all of its properties and assets to, any person or persons, or (b) permit any of the Guarantors to enter into any such transaction or series of transactions if such transaction or series of transactions, in the aggregate, would result in a sale, assignment, conveyance, transfer, lease or other disposition of all or substantially all of the properties and assets of the Company or of the Company and the Guarantors, taken as a whole, to any other person or persons, unless at the time of and after giving effect thereto:

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        In connection with any such transaction or series of transactions, the Company shall deliver, or cause to be delivered, to the Trustee an Officers' Certificate and an Opinion of Counsel, each in form reasonably satisfactory to the Trustee, each stating that such transaction or series of transactions and any supplemental indenture, amendments, supplements or other instruments or agreements required by clause (a) or (c) above comply with the requirements of the Indenture and that all conditions precedent therein provided for relating to such transaction or series of transactions have been complied with (except that such Opinion of Counsel need express no opinion as to the matters referred to in clauses (b)(3), (d)(2) and (e) above).

        Upon any consolidation or merger or any transfer of all or substantially all of the assets of the Company in accordance with the foregoing, in which the Company is not the Surviving Entity, the Surviving Entity shall succeed to, and be substituted for, and may exercise every right and power of, the Company under the Indenture, the Notes, the Registration Rights Agreement, the Intercreditor Agreement, and the relevant Security Documents with the same force and effect as if such Surviving Entity had been named as the Company therein. Thereafter, except in the case of a lease, the predecessor corporation shall be released from its obligations thereunder, except with respect to any obligations that arise from, or are related to, such transaction; provided, however, that solely for purposes of computing amounts described in subclause (C) of the first paragraph under "—Certain Covenants—Limitation on Restricted Payments" above, any such Surviving Entity shall only be deemed to have succeeded to and be substituted for the Company with respect to periods subsequent to the effective time of such transaction or series of transactions.

        No Guarantor will, (a) directly or indirectly, in any transaction or series of transactions, merge, consolidate or amalgamate with or into, or sell, assign, convey, transfer, lease or otherwise dispose of all or substantially all of its properties and assets to, any person or persons, or (b) permit any of its Subsidiaries that are Guarantors (each, a "Subsidiary Guarantor") to enter into any such transaction or series of transactions if such transaction or series of transactions, in the aggregate, would result in a sale, assignment, conveyance, transfer, lease or other disposition of all or substantially all of the properties and assets of such Guarantor or of such Guarantor and its Subsidiary Guarantors, taken as a whole, to any other person or persons, unless at the time of and after giving effect thereto:

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        In connection with any such transaction or series of transactions, the Company shall deliver, or cause to be delivered, to the Trustee an Officers' Certificate and an Opinion of Counsel, each in form reasonably satisfactory to the Trustee, each stating that such transaction or series of transactions and any supplemental indenture, amendments, supplements or other instruments or agreements required by clause (a) or (c) above or by this sentence comply with the requirements of the Indenture and that all conditions precedent therein provided for relating to such transaction or series of transactions have been complied with (except that such Opinion of Counsel need express no opinion as to the matters referred to in clauses (b)(3), (d)(2) or (e) above), and the Company and each other Guarantor will be required to confirm, by supplemental indenture executed and delivered to the Trustee in form reasonably satisfactory to the Trustee, that its obligations under the Indenture, the Intercreditor Agreement, its Guarantee, the Registration Rights Agreement and its Security Documents remain in full force and effect.

        Upon any consolidation, merger or transfer of all or substantially all of the assets of a Guarantor in accordance with the foregoing in which such Guarantor is not the Surviving Person, the Surviving Person shall succeed to, and be substituted for, and may exercise every right and power of, such Guarantor under the Indenture, the Registration Rights Agreement, the Intercreditor Agreement, its Guarantee and the relevant Security Documents with the same force and effect as if such Surviving Person had been named as a Guarantor therein. Thereafter, except in the case of a lease, the predecessor Guarantor shall be released from its obligations thereunder, except with respect to any obligations that arise from, or are related to, such transaction; provided, however, that solely for purposes of computing amounts described in subclause (C) of the first paragraph under "—Certain Covenants—Limitation on Restricted Payments" above, any such Surviving Person shall only be deemed to have succeeded to and be substituted for such Guarantor with respect to periods subsequent to the effective time of such transaction or series of transactions.

        As of the date of the Indenture, all of the Company's existing Subsidiaries, other than New CF&I and CF&I, were Unrestricted Subsidiaries. Unrestricted Subsidiaries will not be subject to the restrictive covenants of the Indenture and the Security Documents.

        As of the Issue Date, the Unrestricted Subsidiaries were: Camrose Pipe Corporation, a Delaware corporation; Canadian National Steel Corporation, an Alberta, Canada corporation; Camrose Pipe Company, an Alberta, Canada partnership; Oregon Steel de Guayana, Inc., a Delaware corporation; OSM Glassification Inc., an Oregon corporation; Glassification International, Ltd., an Oregon partnership; Colorado and Wyoming Railway Company, a Delaware corporation; The Union Ditch and Water Company, a Colorado corporation; OSM Distribution, Inc., a Delaware corporation; Oregon Steel Mills Processing, Inc., a Delaware corporation; Oregon Feralloy Partners, an Oregon partnership; and LSI Plate, an Oregon partnership.

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        In addition, the Board of Directors of the Company may designate any Subsidiary acquired or established after the Issue Date to be an Unrestricted Subsidiary if: (a) none of the properties or assets of such Subsidiary were owned by the Company or any of the Guarantors prior to the Issue Date, other than any such assets as are transferred to such Unrestricted Subsidiary in accordance with the covenant described above under "—Certain Covenants—Limitation on Restricted Payments;" and (b) at the time of such designation:

        As used above, "Non-Recourse Indebtedness" means Indebtedness as to which:

        The Board of Directors of the Company may designate an Unrestricted Subsidiary to be a Guarantor if after giving Pro Forma effect to such designation:

        A designation of an Unrestricted Subsidiary as a Guarantor may not thereafter be rescinded.

        Any designation of a Subsidiary as an Unrestricted Subsidiary, and any designation of an Unrestricted Subsidiary as a Guarantor, shall be evidenced to the Trustee by written notice delivered by the Company to the Trustee at the time of such designation, accompanied by a certified copy of the resolution of the Board of Directors of the Company giving effect to such designation and an Officers' Certificate to the effect that such designation complied with the applicable conditions set forth above and was permitted by the Indenture, including the covenant described under "—Certain Covenants—Limitations on Restricted Payments."

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Events of Default

        Each of the following will be an "Event of Default" under the Indenture:

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        If an Event of Default (other than as specified in clause (vii) above) shall occur and be continuing, either the Trustee, by written notice to the Company, or the holders of at least 25% in aggregate principal amount of the Notes then outstanding, by written notice to the Trustee and the Company, may declare the Notes (including, without limitation, the principal of, premium, if any, and accrued and unpaid interest and Liquidated Damages, if any, on all of the outstanding Notes) to be due and payable immediately, upon which declaration all amounts payable in respect of the Notes shall be immediately due and payable. If an Event of Default specified in clause (vii) above occurs, then the principal of, premium, if any, and accrued and unpaid interest and Liquidated Damages, if any, on all of the outstanding Notes shall ipso facto be immediately due and payable without any declaration or other act on the part of the Trustee or any holder of Notes.

        At any time after a declaration of acceleration under the Indenture as described in the preceding paragraph, but before a judgment or decree for payment of the money due has been obtained by the Trustee, the holders of not less than a majority in aggregate principal amount of the outstanding Notes, by written notice to the Company and the Trustee, may, on behalf of the holders of all the Notes, rescind and cancel such declaration and its consequences if:

        No such rescission or cancellation will affect any subsequent Default or impair any right consequent thereto.

        Prior to the declaration of acceleration under the Indenture, the holders of not less than a majority in aggregate principal amount of the outstanding Notes may, on behalf of the holders of all the Notes, waive any past default under the Indenture, the Intercreditor Agreement, the Notes, the Guarantees or any Security Document and its consequences, except a default in the payment of the principal of, premium, if any, or interest or Liquidated Damages, if any, on any Note not yet cured, or

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a default in respect of a covenant or provision which under the Indenture cannot be modified or amended without the consent of the holder of each outstanding Note affected.

        In the case of any Event of Default occurring by reason of any willful action or inaction taken or not taken by or on behalf of the Company or any of the Guarantors with the intention of avoiding payment of the premium that the Company would have had to pay if the Company had then elected to redeem the Notes pursuant to the optional redemption provisions of the Indenture, an equivalent premium shall also become and be immediately due and payable to the extent permitted by law upon the acceleration of the Notes. If an Event of Default occurs prior to July 15, 2006 by reason of any willful action or inaction taken or not taken by or on behalf of the Company or any of the Guarantors with the intention of avoiding the prohibition on redemption of the Notes prior to July 15, 2006, then the premium specified in the Indenture for redemptions during the 12-month period beginning July 15, 2006 shall also become and be immediately due and payable to the extent permitted by law upon the acceleration of the Notes.

        Subject to certain limitations, holders of not less than a majority in aggregate principal amount of the outstanding Notes may direct the Trustee in its exercise of any trust or power. No holder of any of the Notes has any right to institute any proceeding or pursue any remedy with respect to the Indenture, the Intercreditor Agreement, the Notes, the Guarantees or the Security Documents, unless the holder gives written notice to the Trustee of a continuing Event of Default, the holders of at least 25% in aggregate principal amount of the outstanding Notes have made written request, and offered reasonable indemnity, to the Trustee to institute such proceeding as Trustee under the Notes and the Indenture, the Trustee has failed to institute such proceeding within 30 days after receipt of such notice and the Trustee, within such 30-day period, has not received directions inconsistent with such written request by holders of a majority in aggregate principal amount of the outstanding Notes. Such limitations do not apply, however, to a suit instituted by a holder of a Note for the enforcement of the payment of the principal of, premium, if any, or interest or Liquidated Damages, if any, on such Note on or after the respective due dates expressed in such Note.

        During the existence of an Event of Default, the Trustee is required to exercise such rights and powers vested in it under the Indenture, the Intercreditor Agreement and the Security Documents with the same degree of care and skill in its exercise thereof as a prudent person would exercise under the circumstances in the conduct of such person's own affairs.

        Subject to the provisions of the Indenture relating to the duties of the Trustee, whether or not an Event of Default shall occur and be continuing, the Trustee under the Indenture is not under any obligation to exercise any of its rights or powers under the Indenture, the Intercreditor Agreement or the Security Documents at the request or direction of any of the holders unless such holders shall have offered to the Trustee reasonable security or indemnity. Subject to all provisions of the Indenture and applicable law, the holders of not less than a majority in aggregate principal amount of the outstanding Notes have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred on the Trustee under the Indenture, the Intercreditor Agreement or the Security Documents. Holders of the Notes may not enforce the Indenture or the Notes except as provided in the Indenture.

        If a Default or an Event of Default occurs and is continuing and is known to the Trustee, the Trustee shall mail to each holder of the Notes notice of the Default or Event of Default within 30 days after obtaining knowledge thereof. Except in the case of a default in payment of principal of, premium, if any, or interest or Liquidated Damages, if any, on any Notes, the Trustee may withhold the notice to the holders of such Notes if a committee of its trust officers in good faith determines that withholding the notice is in the interest of the holders of the Notes.

        The Company is required to furnish to the Trustee annual and quarterly statements as to the performance by the Company of its obligations under the Indenture and as to any default in such

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performance. The Company is also required to notify the Trustee within ten days of the Company's becoming aware of any event which is, or after notice or lapse of time or both would become, an Event of Default. Failure of the Company to give such notice shall constitute an immediate Event of Default.

Legal Defeasance and Covenant Defeasance

        The Company may, at its option and at any time, elect to have all of its obligations discharged with respect to the outstanding Notes, and all obligations of the Guarantors discharged with respect to the outstanding Guarantees (upon which discharge the Company may obtain the release of the Collateral as security for the Notes and the Guarantees) ("Legal Defeasance"), except for, among other things:

        In addition, the Company may, at its option and at any time, elect to have the obligations of the Company and the Guarantors released with respect to most of the covenants that are set forth in the Indenture (except as described therein) ("Covenant Defeasance"), and thereafter any failure to comply with such covenants shall not constitute a Default or Event of Default with respect to the Notes. In the event Covenant Defeasance occurs, certain events (not including non-payment, bankruptcy and insolvency events) described under "Events of Default" will no longer constitute an Event of Default with respect to the Notes.

        In order to exercise either Legal Defeasance or Covenant Defeasance:

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Satisfaction and Discharge

        The Indenture provides that the Company may terminate its obligations and the obligations of the Guarantors under the Indenture, the Notes, the Guarantees and the Security Documents (except as described below) (whereupon the Company may obtain the release of the Collateral as security for the Notes and the Guarantees) when:

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Possession, Use and Release of Collateral

        Subject to and in accordance with the provisions of the Security Documents and the Indenture, and so long as no Event of Default shall have occurred and be continuing, the Company and the Guarantors will have the right to remain in possession and retain exclusive control of the Collateral (other than Trust Moneys held by the Trustee and other than as set forth in the Security Documents and in the Indenture), to operate the Collateral, to alter or repair the Collateral and to collect, invest and dispose of any income thereon.

        The Company and the Guarantors, as the case may be, will have the right to request a release of Collateral (the "Released Interests") in the following circumstances:

        The Released Interests may be released from the Lien created by the Indenture and the Security Documents at any time or from time to time upon the request of the Company pursuant to an Officers' Certificate certifying that all terms and conditions precedent for release under the Indenture and the Security Documents have been met and:

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        Notwithstanding the provisions of "—Release of Collateral" above, so long as no Default or Event of Default shall have occurred and be continuing or would result therefrom, the Company and the Guarantors may, without any release or consent by the Trustee, conduct the following activities, in the ordinary course of business and consistent with past practice, with respect to the Collateral (such activities, the "Permitted Dispositions"):

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Use of Trust Moneys

        All Trust Moneys (including, without limitation, all Collateral Proceeds, all deemed Collateral Proceeds and all Net Awards required to be deposited with the Trustee) shall be held by the Trustee as a part of the Collateral securing the Notes.

        So long as no Event of Default shall have occurred and be continuing, such Trust Moneys may either (i) be released as contemplated under "—Repurchase at the Option of Holders—Disposition of Proceeds of Asset Sales" if such Trust Moneys represent Collateral Proceeds or deemed Collateral Proceeds or (ii) at the direction of the Company be applied by the Trustee from time to time to the payment of the principal of, premium, if any, and interest and Liquidated Damages, if any, on any Notes at Stated Maturity or upon redemption or retirement, or to the purchase of Notes upon tender or in the open market or otherwise, in each case in compliance with the Indenture. The Company also may withdraw Trust Moneys constituting Net Cash Proceeds from an Event of Loss with respect to all or any portion of the Collateral or Net Awards to repair or replace the relevant Collateral, subject to certain conditions set forth in the Indenture.

        The Trustee shall be entitled to apply any Trust Moneys to cure any Event of Default. Trust Moneys deposited with the Trustee shall be invested in cash and Cash Equivalents pursuant to the direction of the Company and, so long as no Default or Event of Default shall have occurred and be continuing, the Company shall be entitled to any interest or dividends accrued, earned or paid on such cash and Cash Equivalents.

Amendments, Supplements and Waivers

        From time to time, the Company, the Guarantors and the Trustee may, without the consent of the holders of any outstanding Notes, amend, waive or supplement the Indenture, the Security Documents, the Guarantees, the Intercreditor Agreement or the Notes for certain specified purposes, including, among other things, to:

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        Other amendments and modifications of the Indenture, the Security Documents, the Guarantees, the Intercreditor Agreement or the Notes may be made by the Company, the Guarantors and the Trustee with the consent of the holders of not less than a majority of the aggregate principal amount of the outstanding Notes and the holders of not less than a majority in aggregate principal amount of the outstanding Notes may waive future compliance by the Company or any Guarantor with any provision of the Indenture, the Security Documents, the Guarantees, the Intercreditor Agreement or the Notes; provided, however, that no such modification, amendment or waiver may, without the consent of the holder of each outstanding Note affected thereby shall:

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Concerning the Trustee

        The Indenture contains certain limitations on the rights of the Trustee, should it become a creditor of the Company or any Guarantor, to obtain payment of claims in certain cases, or to realize on certain property received in respect of any such claim as security or otherwise. The Trustee will be permitted to engage in other transactions; however, if it acquires any conflicting interest it must eliminate such conflict within 90 days, apply to the Commission for permission to continue or resign.

        The holders of not less than a majority in aggregate principal amount of the then outstanding Notes will have the right to direct the time, method and place of conducting any proceeding for exercising any remedy available to the Trustee, subject to certain exceptions. The Indenture provides that in case an Event of Default shall occur and be continuing, the Trustee will be required, in the exercise of its power, to use the degree of care of a prudent person in the conduct of such person's own affairs. Subject to such provisions, the Trustee will be under no obligation to exercise any of its rights or powers under the Indenture at the request of any holder of Notes, unless such holder shall have offered to the Trustee security and indemnity satisfactory to it against any loss, liability or expense.

Governing Law

        The Indenture, the Notes and the Guarantees are governed by, and construed in accordance with, the laws of the State of New York applicable to contracts made and to be performed in the State of New York. The Security Documents are governed by, and construed in accordance with, the laws of the State of New York applicable to contracts made and to be performed in the State of New York, except to the extent that validity or perfection of security interests in respect of certain items of Collateral, including without limitation, real property, is governed by the laws of the jurisdiction where such Collateral is located.

No Personal Liability of Directors, Officers, Employees and Stockholders

        No director, officer, employee, incorporator or stockholder (other than the Company and the Guarantors) of the Company or any Guarantor, as such, shall have any liability for any obligations of the Company or the Guarantors under the Notes, the Indenture, the Guarantees, the Security Documents or the Intercreditor Agreement or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under federal securities laws.

Additional Information

        Anyone who receives this offering circular may obtain a copy of the Indenture, the Security Documents and the Registration Rights Agreement without charge by requesting them in writing or by telephone from the Company at the following address: Oregon Steel Mills, Inc., 1000 SW Broadway, Suite 2200, Portland, Oregon 97205, Attn: Vice President, Corporate Affairs, Telephone: (503) 240-5787.

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Certain Definitions

        Set forth below are certain defined terms used in the Indenture. Reference is made to the Indenture for a full disclosure of all such terms, as well as any other capitalized terms used herein for which no definition is provided.

        "Acquired Indebtedness" means:

        "Affiliate" means, with respect to any specified person, any other person directly or indirectly controlling or controlled by or under direct or indirect common control with such specified person. For purposes of this definition, "control," as used with respect to any person, shall mean the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of such person, whether through the ownership of voting securities, by agreement or otherwise. For purposes of this definition, the terms "controlling," "controlled by" and "under direct or indirect or common control with" shall have correlative meanings.

        "amend" means to amend, supplement, restate, amend and restate, replace or otherwise modify; and "amendment" shall have a correlative meaning.

        "asset" means any asset or property, whether real or personal, tangible, intangible or mixed.

        "Asset Acquisition" means:

        "Asset Sale" means:

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        For the purposes of this definition, the term "Asset Sale" shall not include:

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        For purposes of determining whether a lease or sublease described in paragraph (g) of the definition of "Permitted Liens" is excluded from the definition of Asset Sale pursuant to clause (ii) above, the Fair Market Value or gross proceeds from such lease or sublease in a particular fiscal year shall be determined by the sum of the lease payments (and in the case of a triple net lease, to the extent applicable, exclusive of taxes, insurance, maintenance expenses and other net lease items) received by the Company and the Guarantors in such fiscal year.

        "Attributable Debt" means in respect of a Sale-Leaseback Transaction, at the time of determination, the present value of the obligation of the lessee for net rental payments during the remaining term of the lease included in such Sale-Leaseback Transaction, including any period for which such lease has been extended or may, at the option of the lessor, be extended. Such present value shall be calculated using a discount rate equal to the rate of interest implicit in such transaction, determined in accordance with GAAP.

        "Average Life to Stated Maturity" means, with respect to any Indebtedness, as of any date of determination, the quotient obtained by dividing (i) the sum of the products of (a) the number of years (or any fraction thereof) from such date to the date or dates of each successive scheduled principal payment (including, without limitation, any sinking fund requirements) of such Indebtedness multiplied by (b) the amount of each such principal payment by (ii) the sum of all such principal payments.

        "Beneficial Owner" has the meaning assigned to such term in Rule 13d-3 and Rule 13d-5 under the Exchange Act (except that a person shall be deemed to have Beneficial Ownership of all securities that such person has the right to acquire, whether such right is exercisable immediately, only after the passage of time, upon the happening of an event or otherwise); and "Beneficially Own" shall have a correlative meaning.

        "Board of Directors" means:

        "business day" means any day, other than a Saturday, a Sunday or a day on which banking institutions in the City of New York or at a place of payment are authorized by law, regulation or executive order to remain closed.

        "Camrose" means Camrose Pipe Company, a general partnership organized under the laws of the Province of Alberta, Canada, and its successors.

        "Camrose Partnership Agreement" means the Partnership Agreement dated as of January 2, 1992 and as amended June 30, 1992, by and between Camrose Pipe Corporation and Stelcam Holding, Inc., as in effect on the Issue Date (not giving effect to any subsequent amendment or modification thereof except for such amendments or modifications thereof permitted by the terms of the Indenture and such agreement).

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        "Camrose Pipe" means Camrose Pipe Corporation, a corporation organized under the laws of Delaware, and its successors.

        "Canadian National Steel" means Canadian National Steel Corporation, a corporation organized under the laws of the Province of Alberta, Canada, and its successors.

        "Capital Contribution" means any contribution to the equity of the Company for which no consideration is given other than the issuance of Capital Stock (other than Redeemable Capital Stock) of the Company, including Capital Stock (other than Redeemable Capital Stock) of the Company issued upon the conversion of convertible Indebtedness or from the exercise of options, warrants or rights to purchase Capital Stock (other than Redeemable Capital Stock) of the Company.

        "Capital Stock" means, with respect to any specified person:

        "Capitalized Lease Obligation" of a specified person means any obligation under a lease of (or other agreement conveying the right to use) any property (whether real, personal or mixed) that is required by GAAP to be classified and accounted for as a capital lease on the balance sheet of such specified person, and the amount of such obligation at any date shall be the capitalized amount thereof at such date, determined in accordance with GAAP.

        "Cash Equivalents" means, at any time:

        "CF&I" means CF&I Steel, L.P., a Delaware limited partnership and its successors pursuant to the Indenture.

        "CF&I Partnership Agreement" means the Amended and Restated Agreement of Limited Partnership of CF&I Steel, L.P. dated March 3, 1993, as amended December 1, 2000, as in effect on the Issue Date (not giving effect to any subsequent amendment or modification thereof except for such amendments or modifications thereof permitted by the terms of the Indenture and such agreement).

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        "Change of Control" means the occurrence of any of the following events:

        "Collateral" means, collectively, all of the property and assets that are from time to time subject to the Lien of the Security Documents.

        "Collateral Account" means the Collateral account established pursuant to the Indenture.

        "Common Stock" means, with respect to any person:

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        "Consolidated Cash Flow Available for Fixed Charges" means, with respect to the Company for any period, Consolidated Net Income of the Company for such period.

in each case, on a consolidated basis and determined in accordance with GAAP; provided that Consolidated Income Tax Expense and Consolidated Non-Cash Charges of a Guarantor that is less than a Wholly Owned Subsidiary of the Company shall only be added to the extent of the equity interest of the Company in such Guarantor.

        "Consolidated Fixed Charge Coverage Ratio" means, with respect to the Company, the ratio of:

        In addition to and without limitation of the foregoing, for purposes of this definition, "Consolidated Cash Flow Available for Fixed Charges" and "Consolidated Fixed Charges" shall be calculated after giving effect on a Pro Forma basis for the period of such calculation to, without duplication:

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        Furthermore, in calculating "Consolidated Fixed Charges" for purposes of determining this "Consolidated Fixed Charge Coverage Ratio":

        If and to the extent the Company or any of the Guarantors directly or indirectly guarantees Indebtedness of a third person, the calculation of the "Consolidated Fixed Charge Coverage Ratio" shall give effect to the incurrence of such guaranteed Indebtedness as if the Company or such Guarantor had directly incurred such guaranteed Indebtedness.

        "Consolidated Fixed Charges" means, with respect to the Company for any period, the sum, without duplication, of the amounts for such period of:

        "Consolidated Income Tax Expense" means, with respect to the Company for any period, the provision for federal, state, local and foreign income taxes of the Company and the Guarantors for such period as determined on a consolidated basis in accordance with GAAP.

        "Consolidated Interest Expense" means, with respect to the Company for any period, without duplication, the sum of:

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        "Consolidated Net Income" means, with respect to the Company, for any period, the net income (loss) of the Company and its Subsidiaries for such period as determined in accordance with GAAP, adjusted, to the extent included in calculating such net income (loss) by excluding, without duplication:

        "Consolidated Net Worth" means, with respect to any person at any date, the consolidated stockholders', members' or partners' equity, as the case may be, of such person (determined on a consolidated basis in accordance with GAAP), adjusted to exclude (to the extent included in calculating such equity) the amount of any such stockholders', members' or partners' equity, as the case may be, attributable to Redeemable Capital Stock of such person and its Subsidiaries, as determined on a consolidated basis in accordance with GAAP.

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        "Consolidated Non-Cash Charges" means, with respect to the Company for any period, the aggregate depreciation and amortization and other non-cash expenses of the Company and its Subsidiaries, to the extent deducted in computing Consolidated Net Income of the Company and its Subsidiaries for the subject period, determined on a consolidated basis in accordance with GAAP (i) including, without limitation, (A) amortization of debt issuance costs, (B) compensation expenses recognized for the contribution of shares to an employee stock option plan, (C) amortization of goodwill and other intangibles and (D) any write-offs or impairment charges; (ii) but excluding (A) any such charges constituting an extraordinary item or loss or (B) any such charge which required or which represents an accrual of or a reserve for cash charges for any future period or amortization of a prepaid cash expense that was paid in a prior period;

        "contractually subordinated" means, with respect to any specified Indebtedness relative to any other Indebtedness, expressly subordinated in right of payment to such other Indebtedness by the terms of such specified Indebtedness or the terms of any document or instrument relating thereto.

        "CPC" means Camrose Pipe Corporation, a Delaware corporation, and its successors.

        "Credit Facility" means (a) the Credit Agreement, dated as of the Issue Date, by and among the Company, New CF&I, CF&I, CWR and Textron Financial Corporation, a Delaware corporation, as Revolver Agent (and any related notes, guarantees, collateral documents, instruments and agreements executed in connection therewith), and (b) any amendment, modification, supplement, refunding or refinancing thereof or any replacement Credit Facility, in each case, that is entered into in compliance with the Indenture.

        "Currency Agreement" means any foreign exchange contract, currency swap agreement or other similar agreement or arrangement designed to protect the Company or any of the Guarantors against fluctuations in currency values.

        "CWR" means Colorado and Wyoming Railway Company, a Delaware corporation, and its successors.

        "Default" means any event or condition that is, or after notice or passage of time or both would be, an Event of Default.

        "Event of Default" has the meaning set forth under "—Events of Default" above.

        "Event of Loss" means, with respect to any property or asset (or any portion thereof), any (i) loss or destruction of or damage to such property or asset (or any portion thereof), (ii) any actual condemnation, seizure or taking, by exercise of the power of eminent domain or otherwise, of such property or asset (or any portion thereof), or confiscation or requisition of the use of such property or asset (or any portion thereof), or (iii) any settlement in lieu of clause (ii) above.

        "Exchange Act" means the Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder.

        "Excluded Assets" means:

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        With respect to any property securing Indebtedness as described in clause (i) of the foregoing sentence, at such time as the purchase money Indebtedness or Indebtedness incurred to refinance, replace or refund such purchase money Indebtedness referred to in clause (i) of the foregoing sentence shall no longer be outstanding, or at such time as such purchase money Indebtedness or any such Indebtedness incurred to refinance, replace or refund such purchase money Indebtedness shall no longer be secured by a Lien on such property permitted under clause (h) of the definition of Permitted Liens, then, in each of the foregoing cases, to the extent that such property is of the type which would constitute "Trust Property" (as defined in the form of Mortgage attached as an exhibit to the Indenture) or "Collateral" (as defined in the form of Security Agreement attached as an exhibit to the Indenture), such property shall be treated as After-Acquired Property and the Company shall, or shall cause the relevant Guarantor to, cause such property to be made subject to the Lien of the Security Documents in the manner and to the extent required by the Indenture. For the avoidance of doubt, notwithstanding anything to the contrary in this definition or any other definition, none of the property or assets described in the first five bullet points under "Security—Collateral" above shall in any circumstances constitute or be deemed to constitute "Excluded Assets."

        "Excluded Contracts" means any right, title or interest of the Company or any Guarantor in, to or under any contract, agreement or other instrument entered into with, or any license granted by or to, any person that is not the Company or a Subsidiary of the Company and which contract, agreement, instrument or license by its express terms prohibits the assignment thereof or the grant of a security interest therein by the Company or such Guarantor, as the case may be, or by its express terms permits such assignment or grant of a security interest only with the consent of such person, provided, that any such right, title and interest shall cease to be an Excluded Contract to the extent that an appropriate consent to such assignment or grant of a security interest has been obtained or the provisions which prohibit the assignment thereof or the grant of a security interest therein cease to be valid and enforceable; and provided, further, that Excluded Contracts shall not include (i) the leasehold interest in the Company's office space located at 1000 SW Broadway, Portland, Oregon or (ii) any contracts, agreements, licenses or other instruments specifically identified in any Security Document as being subject to the Lien created by or granted in such Security Document.

        "Excluded Securities" means the Capital Stock of any of the Company's Subsidiaries.

        "Fair Market Value" means, with respect to any property or assets, the price which could be negotiated in an arm's-length free market transaction, for cash, between a willing seller and a willing buyer, neither of which is under pressure or compulsion to complete the transaction. "Fair Market Value" shall (i) except for purposes of clause (vi) of the definition of "Event of Default" and except for purposes of the covenants described under "Repurchase at the Option of Holders—Disposition of Proceeds of Asset Sales" (including the $1,500,000 determination, but other than the $150,000 per transaction determination, contemplated by clause (ii) of the definition of "Asset Sale" and other than the $25,000 per transaction determination contemplated by clause (iii) of the definition of "Asset Sale") and "Certain Covenants—Limitation on Sale-Leaseback Transactions," be determined by a Financial Officer of the Company with respect to any property or assets with a Fair Market Value of less than $2,500,000 and shall be evidenced by an Officers' Certificate signed by such Financial Officer and one other officer of the Company certifying such determination and delivered to the Trustee, and (ii) otherwise, shall be determined by the Board of Directors of the Company acting in good faith and shall be evidenced by a resolution of the Board of Directors of the Company set forth in an Officers' Certificate certifying such determination and delivered to the Trustee; provided, that any determination of Fair Market Value made with respect to any parcel of real property with a value in excess of $10,000,000 shall (except for purposes of clause (vi) of the definition of "Event of Default") be made by an Independent Appraiser.

        "Final Maturity Date" means July 15, 2009.

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        "Financial Officer" of a person means any of the Chief Executive Officer, the President, the Chief Financial Officer and the Vice President of Finance.

        "Four Quarter Period" means, with respect to a particular date of determination, the Company's most recently ended four fiscal quarters for which internal financial statements are available.

        "GAAP" means generally accepted accounting principles set forth in the opinions and pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as may be approved by a significant segment of the accounting profession of the United States of America, which are applicable from time to time and are consistently applied.

        "Guarantee" means, with respect to any Guarantor, its irrevocable and unconditional guarantee of the Company's payment obligations under the Indenture and the Notes, created pursuant to the Indenture, and its guarantee endorsed on the Notes. In the case of CF&I, such term also includes the promissory note of CF&I, in substantially the form attached as an exhibit to the Indenture, delivered to the Trustee in connection with CF&I's aforesaid guarantee, in each case as the same may be amended, supplemented or otherwise modified from time to time in accordance with the terms of the Indenture.

        "guarantee" means, as applied to any obligation:

        "Guarantors" means (i) each of New CF&I and CF&I and (ii) each of the Company's other Subsidiaries which, after the Issue Date, becomes a Guarantor, including those who become Guarantors after the Issue Date as required by the covenant described under "—Certain Covenants—Additional Guarantors" or who are designated as Guarantors as described under "Unrestricted Subsidiaries; Designation of Unrestricted Subsidiaries" above.

        "incur" means to directly or indirectly create, incur, issue, assume, guarantee, suffer to exist or become effective, or in any manner become directly or indirectly liable, contingently or otherwise, for the payment of or otherwise with respect to any Indebtedness; and "incurrence" shall have a correlative meaning; provided, however, that regular accrual on discount notes shall not constitute an incurrence.

        "Indebtedness" means, with respect to any person (as used in this definition, the "obligor"), without duplication, and whether or not contingent:

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        The amount of any Indebtedness outstanding as of any date shall be:

        For purposes hereof, the "maximum fixed repurchase price" of any Redeemable Capital Stock which does not have a fixed repurchase price shall be calculated in accordance with the terms of such Redeemable Capital Stock as if such Redeemable Capital Stock were purchased on any date on which Indebtedness shall be required to be determined pursuant to the Indenture, and if such price is based upon, or measured by, the fair market value of such Redeemable Capital Stock, such fair market value shall be determined in good faith by the Board of Directors of the issuer of such Redeemable Capital Stock.

        "Independent Appraiser" means a person:

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        "Independent Financial Advisor" means an accounting, appraisal or investment banking firm of nationally recognized standing:

        "Intercompany Indebtedness" means (i) any Indebtedness owed by the Company to any Subsidiary of the Company or (ii) any Indebtedness owed by any Subsidiary of the Company to the Company or any other Subsidiary of the Company.

        "Intercreditor Agreement" means the Intercreditor Agreement, dated as of the Issue Date, by and among the Company, CF&I, New CF&I, CWR, the Trustee and the Revolver Agent, substantially in the form attached as an exhibit to the Indenture, as the same may be amended, supplemented or modified from time to time in accordance with its terms or the terms of the Indenture, and any successor or replacement agreement, the terms of which are no less favorable to the holders of the Notes in any material respect (as evidenced by an Officers' Certificate delivered to the Trustee) than those contained in the Intercreditor Agreement as in effect on the Issue Date (and not giving effect to any subsequent amendment or modification thereof).

        "Interest Rate Protection Agreement" means any arrangement with any other person whereby, directly or indirectly, such person is entitled to receive from time to time periodic payments calculated by applying either a floating or a fixed rate of interest on a stated notional amount in exchange for periodic payments made by such person calculated by applying a fixed or a floating rate of interest on the same notional amount and shall include without limitation, interest rate swaps, caps, floors, collars and similar agreements.

        "Interest Rate Protection Obligations" means the obligations of any person pursuant to an Interest Rate Protection Agreement.

        "Interested Person" means, with respect to a specified person, any Beneficial Owner of 5% or more of the outstanding Common Stock of such person or 5% or more of the outstanding Common Stock of any Subsidiary of such person.

        "Investment" means, with respect to any person, any direct or indirect loan, advance or other extension of credit or Capital Contribution, purchase, other acquisition or ownership of (or direct or indirect obligation to subscribe for) any Capital Stock, Indebtedness, bonds, notes, debentures or other securities (including, without limitation, any interests in any partnership, limited liability company or joint venture) or evidences of Indebtedness (by means of any transfer of cash or other property to another person, or any payment for property or services for the account or use of another person, or any guarantee of any Indebtedness or other obligations of another person, or creation or assumption of any other contingent liability in respect of any Indebtedness of another person, or otherwise), together with any item that is or would be classified as an investment on a balance sheet prepared in accordance with GAAP.

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        In addition:

        "Issue Date" means the closing date for the sale and original issuance of the Notes.

        "Lien" means any mortgage, charge, pledge, lien (statutory or other), security interest, hypothecation, assignment for security, claim, preference, priority or other encumbrance of any kind, regardless of whether filed, recorded or otherwise perfected under applicable laws, including any conditional sale, capital lease or other title retention agreement, any lease in the nature thereof, any option or other agreement to sell or give a security interest in and any filing of or agreement to give any financing statement under the Uniform Commercial Code (or equivalent statutes) of any jurisdiction.

        "LSI Plate" means LSI Plate, a partnership organized under the laws of Oregon, and its successors.

        "Maturity Date" means, with respect to any Note, the date on which any principal of such Note becomes due and payable as provided therein or in the Indenture, whether at the Stated Maturity with respect to such principal or by declaration of acceleration, call for redemption or purchase or otherwise.

        "Moody's" means Moody's Investors Service, Inc. and its successors.

        "Mortgage" means a deed of trust (or mortgage), assignment of rents and leases and security agreement substantially in the form attached as an exhibit to the Indenture (including such changes to such form as may be necessary or desirable to conform to applicable laws or customs regarding property in the jurisdiction where such instrument is to be recorded), as the same may be amended, supplemented or otherwise modified from time to time in accordance with the terms of the Indenture and such instrument.

        "Motor Vehicles/Mobile Equipment" means (i) motor vehicles and mobile equipment of the types listed on a schedule to the Security Agreements entered into by the Company, CF&I and New CF&I owned by the Company and the Guarantors and (ii) Motor Vehicles (as defined in the form of Security Agreement attached as an exhibit to the Indenture).

        "Net Award" means all proceeds, awards or payments for any Collateral (including any portion thereof) which is taken by eminent domain, expropriation or similar governmental actions or sold pursuant to the exercise by the United States of America or any State, municipality, province or other governmental authority of any right which it may have to purchase, or to designate a purchaser or to order a sale of, all or any part of the Collateral, in each case less collection expenses.

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        "Net Cash Proceeds" means, with respect to any Asset Sale, or sale, or Capital Contribution in respect of, Capital Stock, the aggregate proceeds thereof received by the Company or any of the Guarantors in the form of cash or Cash Equivalents (including payments in respect of deferred payment obligations when received in the form of cash or Cash Equivalents (except to the extent that such obligations are financed or sold with recourse to the Company or any Guarantor), and including, in the case of an Event of Loss, the insurance proceeds (excluding any liability insurance proceeds payable to the Trustee for any loss, liability or expense incurred by it) paid as the result of any Event of Loss with respect to all or any portion of the Collateral), plus, in the case of an issuance of Capital Stock, upon any exercise, exchange or conversion or securities (including options, warrants and convertible or exchangeable debt) of the Company that were issued for cash on or after the Issue Date, the amount of cash originally received by the Company upon the issuance of such securities, net of in each case:

        "New CF&I" means New CF&I, Inc., a Delaware corporation, and its successors pursuant to the Indenture.

        "New CF&I Stockholders Agreement" means the Restated Stockholders Agreement, dated as of November 16, 1995, among the Company, New CF&I, Nippon Steel Corporation, NS Finance III, Inc.,

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Nissho Iwai Corporation, and Nissho Iwai American Corporation, as in effect on the Issue Date, not giving effect to any subsequent amendment or modification thereof except for such amendments or modifications thereof permitted by the terms of the Indenture and such agreement.

        "Officers' Certificate" of a person means a certificate signed on behalf of such person by any two of the following: the Chief Executive Officer, the President, the Chief Financial Officer, the Vice President of Finance, the Corporate Controller, the Treasurer or the Secretary of such person and delivered to the Trustee.

        "Old Bank Documents" means, collectively, the Old Credit Agreement, any and all guarantees related thereto, and all mortgages, deeds of trust, pledge agreements, security agreements and similar agreements entered into by the Company or any of its present or former Subsidiaries to secure their obligations under, or otherwise in connection with, the Old Credit Agreement.

        "Old Credit Agreement" means the Credit Agreement, dated as of December 1, 2000, by and among the Company, New CF&I, CF&I, PPM Finance, Inc., as agent, and the other financial institutions party thereto, as lenders, as amended by Amendment No. 1 thereto dated as of August 13, 2001. References to Indebtedness under the Old Credit Agreement shall be deemed to include any and all guarantees of such Indebtedness and any and all obligations under the Old Bank Documents.

        "Old Indenture" means the Indenture, dated as of June 1, 1996, among the Company, CF&I and New CF&I, as guarantors, and JPMorgan Chase Bank (as successor to Chemical Bank), as trustee.

        "Old Note Documents" means, collectively, the Old Indenture, any and all guarantees related thereto, and all mortgages, deeds of trust, pledge agreements, security agreements and similar agreements entered into by the Company or any of its present or former Subsidiaries to secure their obligations under, or otherwise in connection with, the Old Indenture and the Old Notes.

        "Old Notes" means the 11% First Mortgage Notes due 2003 of the Company, together with any and all guarantees thereof.

        "Opinion of Counsel" means a written opinion from legal counsel who is reasonably satisfactory to the Trustee. The counsel may be an employee of or counsel for the Company, a Guarantor or the Trustee. The opinion may be subject to reasonable and customary assumptions and conclusions.

        "Oregon Feralloy" means Oregon Feralloy Partners, a partnership organized under the laws of Oregon, and its successors.

        "Pari Passu Indebtedness" means Indebtedness of the Company or any Guarantor which ranks pari passu in right of payment with the Notes or the Guarantee of such Guarantor, as the case may be.

        "Permitted Investments" means any of the following:

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        "Permitted Liens" means the following types of Liens:

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106

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        "Permitted Refinancing Indebtedness" means (i) Indebtedness of the Company issued in exchange for, or the proceeds of which are used solely to refinance (whether by amendment, renewal, extension, replacement or refunding), outstanding Indebtedness of the Company or any of the Guarantors and (ii) Indebtedness of any Guarantor issued in exchange for, or the proceeds of which are used solely to refinance (whether by amendment, renewal, extension, replacement or refunding), outstanding Indebtedness of such Guarantor (any and all such Indebtedness issued in exchange for, or the proceeds of which are used to solely to refinance outstanding Indebtedness, as described in clauses (i) and (ii), is referred to in this definition as "Refinancing Indebtedness"), in each case other than refinancing Indebtedness in respect of (I) Indebtedness under (or guarantees of Indebtedness under) the Old Bank Documents, the Old Note Documents or any other Indebtedness refinanced, redeemed or retired with the proceeds from the sale of the Notes and (II) Indebtedness under clause (c), (d), (e), (f), (g), (h), (i), (j), (k) or (o) of the covenant described under "—Certain Covenants—Limitation on Indebtedness;" provided, however, that in each case:

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        "person" means any individual, corporation, limited liability company, partnership, joint venture, association, joint-stock company, trust, charitable foundation, unincorporated organization, government or any agency or political subdivision thereof or any other entity.

        "Preferred Stock" means, with respect to any person, any Capital Stock of such person of any class or series (however designated) that ranks prior, as to (i) payment of dividends or distributions, (ii) distributions upon voluntary or involuntary liquidation, dissolution or winding up or (iii) redemption, to shares of Capital Stock of any other class or series of such person. For purposes of this definition, the term "Capital Stock" shall not include rights, warrants or options.

        "Pro Forma" means pro forma calculated on a basis consistent with Regulation S-X under the Securities Act.

        "Pueblo Inside the Fence Property" means the real property in Pueblo County, Colorado as described in the Boundary and Improvement Survey of "Inside the Fence Property" of CF&I Steel, L.P., dated as of May 8, 2002, by Valley Engineering, Inc.

        "Pueblo Outside the Fence Property" means the real property of the Company and the Guarantors in Pueblo County, Colorado and Fremont County, Colorado other than (i) the Pueblo Inside the Fence Property, (ii) the easements outside of but appurtenant to the Pueblo Inside the Fence Property running over and across certain real property in Pueblo County, Colorado and Fremont County, Colorado on which the canals or ditches for bringing industrial water to and related access and utility service for the Pueblo Inside the Fence Property are located, and (iii) all industrial water rights appurtenant to and used on the Pueblo Inside the Fence Property.

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        "Qualified Equity Offering" means any sale of Common Stock (other than Redeemable Capital Stock) of the Company for cash, other than pursuant to Form S-8 (or any successor thereto) under the Securities Act and other than shares of Common Stock of the Company issued pursuant to employee benefit plans or as compensation to employees.

        "Redeemable Capital Stock" means any shares of any class or series of Capital Stock that, by the terms thereof (or by the terms of any security into which it is convertible or for which it is exchangeable), by contract, upon the happening of any event, by the passage of time or otherwise:

        Notwithstanding the foregoing:

        "refinancing" means, with respect to specified Indebtedness, any refinancing of such Indebtedness, whether by amendment, renewal, extension, replacement, refunding or otherwise; and "refinance" shall have a correlative meaning.

        "Revolver Agent" means the person or any or all of the persons as, from time to time, may be named as agent or agents for the lenders under the Credit Facility in accordance with the terms thereof.

        "Revolver Collateral" means, all rights, title and interest in, to and under the following property, whether now owned by or owing to, or hereafter acquired by or arising in favor of, the Company, New CF&I, CF&I or CWR: (i) accounts receivable (including, without limitation, accounts receivable evidenced by chattel paper and instruments and chattel paper and instruments into which any accounts have been or are converted) and rights under contracts relating to inventory or to accounts receivable, inventory, and all books, records, writings, databases and other information relating to the accounts receivable and inventory, (ii) any instruments evidencing Intercompany Indebtedness, (iii) Excluded Securities (other than Camrose, Camrose Pipe, Canadian National Steel, Oregon Feralloy and LSI Plate) (including a negative pledge on certain of the shares of The Union Ditch and Water Company

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held by CF&I), (iv) other than the Collateral Account, all bank accounts, deposit accounts and cash collateral accounts and investment property, (v) general intangibles (including but not limited to trade names, trademarks, patents, copyrights and related goodwill), excluding any intellectual property or other general intangibles related to production, property, plant and equipment, the operation thereof or the production and manufacturing processes, (vi) documents, supporting obligations (including without limitation letter of credit rights), software, customer lists, computer systems and books and records relating to the property or assets described in (and not excluded from) clauses (i) through (v) above, and (vii) all other related personal property and proceeds and products therefrom, proceeds deposited from time to time in any lock box or blocked account and, to the extent not otherwise included, all payments under insurance with respect to the foregoing Revolver Collateral (except to the extent that such personal property constitutes, or such proceeds or products are invested in, real property or improvements thereon, machinery and equipment (to the extent it constitutes personal property), or other property and assets owned by the Company and the Guarantors which constitute Collateral), to the extent that any of the foregoing is collateral securing the Credit Facility, or any indemnity, warranty or guarantee payable by reason of loss or damage to, or with respect to, any of the foregoing Revolver Collateral.

        "Sale-Leaseback Transaction" of any person means an arrangement with any lender or investor or to which such lender or investor is a party providing for the leasing by such person or any of its Subsidiaries of any property or asset of such person or any of its Subsidiaries which has been or is being sold or transferred by such person or any of its Subsidiaries to such lender or investor or to any person to whom funds have been or are to be advanced by such lender or investor on the security of such property or asset; provided, that the term Sale-Leaseback Transaction shall not include any such transaction pursuant to which CF&I shall sell or transfer any of the water rights and related water system owned by it on the Issue Date in conjunction with an agreement or other arrangement pursuant to which CF&I receives the right to purchase or receive water represented by any portion of the water rights so sold or transferred (it being understood that this proviso shall not prevent any such sale or transfer of water rights or water system from constituting an Asset Sale).

        "Securities Act" means the Securities Act of 1933, as amended from time to time, and the rules and regulations thereunder.

        "Security Agreement" means a security agreement, substantially in the form attached as an exhibit to the Indenture (including such changes to such form as may be necessary or desirable to conform to applicable laws in the jurisdiction or jurisdictions whose laws are applicable to the Lien created by such agreement), as the same may be amended, supplemented or otherwise modified from time to time in accordance with the terms of such instrument or the Indenture.

        "Security Documents" means, collectively:

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        "S&P" means Standard & Poor's Corporation, and its successors.

        "Stated Maturity" means:

        "Subordinated Indebtedness" means Indebtedness of the Company or a Guarantor which is contractually subordinated to the Notes or the Guarantee of such Guarantor, as the case may be.

        "Subsidiary" means, with respect to any person:

        For purposes of this definition, any directors' qualifying shares or investments by foreign nationals mandated by applicable law shall be disregarded in determining the ownership of a Subsidiary.

        "transfer" means any direct or indirect sale, assignment, mortgage, encumbrance, pledge, gift, bequeath, hypothecation or other disposition or transfer, whether (unless expressly stated otherwise) for or without consideration, or voluntary or involuntary or by operation of law); the term "transfer" used as a verb shall have a corresponding meaning.

        "Trust Moneys" means all cash and Cash Equivalents received by the Trustee:

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provided, however, that Trust Moneys shall in no event include any property deposited with the Trustee for any redemption, legal defeasance or covenant defeasance of Notes, for the satisfaction and discharge of the Indenture or to pay the purchase price of (including all principal of, and premium, interest and Liquidated Damages, if any, on) Notes pursuant to a Change of Control Offer or delivered to or received by the Trustee pursuant to the Indenture in connection with an Event of Default.

        "Unrestricted Subsidiary" means (a) Camrose Pipe Corporation, a Delaware corporation; Canadian National Steel Corporation, an Alberta, Canada corporation; Camrose Pipe Company, an Alberta, Canada partnership; Oregon Steel de Guayana, Inc., a Delaware corporation; OSM Glassification Inc., an Oregon corporation; Glassification International, Ltd., an Oregon partnership; Colorado and Wyoming Railway Company, a Delaware corporation; The Union Ditch and Water Company, a Colorado corporation; OSM Distribution, Inc., a Delaware corporation; Oregon Steel Mills Processing, Inc., a Delaware corporation; Oregon Feralloy Partners, an Oregon partnership; and LSI Plate, an Oregon partnership; and (b) any other Subsidiary of the Company that, at the date of determination, shall be designated as an Unrestricted Subsidiary by the Board of Directors of the Company (all as described above under "—Unrestricted Subsidiaries; Designation of Unrestricted Subsidiaries"); provided, however, that any such Unrestricted Subsidiary shall cease to constitute an Unrestricted Subsidiary upon its designation by the Board of Directors of the Company as a Guarantor as described above under "—Unrestricted Subsidiaries; Designation of Unrestricted Subsidiaries."

        "Voting Stock" of any person means any class or classes of Capital Stock pursuant to which the holders thereof have the general voting power under ordinary circumstances to elect a majority of the board of directors, managers or trustees of any person (irrespective of whether or not, at the time, Capital Stock of any other class or classes shall have, or might have, voting power by reason of the happening of any contingency).

        "Wholly Owned Subsidiary" means any Subsidiary of the Company of which 100% of the outstanding Capital Stock is owned by the Company, by one or more Wholly Owned Subsidiaries of the Company or by the Company and one or more Wholly Owned Subsidiaries of the Company. For purposes of this definition:

        For purposes of the foregoing definition, neither CF&I nor New CF&I shall be deemed not to be a Wholly Owned Subsidiary of the Company solely by virtue of (A) any sale, transfer or assignment after the Issue Date of any limited partnership interests or Common Stock referred to in clause (ii) of the preceding sentence (including, without limitation, by admission of additional limited partners to CF&I), so long as such sale, transfer or assignment is otherwise made in compliance with the provisions of the Indenture or (B) any merger or consolidation of CF&I or New CF&I, respectively, so long as

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such merger or consolidation is in compliance with the provisions of the Indenture and the ownership of the limited partnership interests in CF&I and the Common Stock of New CF&I, after giving effect to such merger or consolidation, is the same as the ownership of such limited partnership interests and Common Stock immediately prior to such merger or consolidation.

Registration Rights, Exchange Offer

        The Company, the Guarantors and the Initial Purchaser entered into an Exchange and Registration Rights Agreement (the "Registration Rights Agreement") pursuant to which the Company and the Guarantors agreed, for the benefit of the holders of the Notes to file under the Securities Act a registration statement relating to an offer to exchange (such registration statement, the "Exchange Registration Statement," and such offer, the "Exchange Offer") any and all of the Notes for a like aggregate principal amount of debt securities issued by the Company and guaranteed by the Guarantors, which debt securities and guarantees are substantially identical to the Notes and the Guarantees, except that such securities have been registered pursuant to an effective registration statement under the Securities Act and do not contain provisions for the Liquidated Damages described below (such new debt securities, the "Exchange Notes").

        The Registration Rights Agreement will provide that the Company:

        "Registrable Securities" mean the Notes (together with the Guarantees); provided, however, that any such security shall cease to be a Registrable Security when (i) it has been exchanged for an Exchange Note in an Exchange Offer as contemplated in Section 2(a) of the Registration Rights Agreement (provided that any Exchange Note that, as described in the following paragraph, is included in a prospectus for use in connection with resales by broker-dealers shall be deemed to be a Registrable Security with respect to specified sections of the Registration Rights Agreement until resale of such Registrable Security has been effected within the 180-day period referred to in the following paragraph); (ii) a Shelf Registration Statement registering such security under the Securities Act has been declared or becomes effective and such security has been sold or otherwise transferred by the holder thereof pursuant to and in a manner contemplated by such effective Shelf Registration Statement; (iii) such security is sold pursuant to Rule 144 under the Securities Act under circumstances in which any legend borne by such security relating to restrictions on transferability thereof, under the Securities Act or otherwise, is removed by the Company or pursuant to the Indenture; (iv) such security is eligible to be sold pursuant to paragraph (k) of Rule 144 under the Securities Act; or (v) such security shall cease to be outstanding.

        Under existing Commission interpretations, the Company believes that the Exchange Notes would in general be freely transferable after the Exchange Offer without further registration under the Securities Act, except that broker-dealers receiving Exchange Notes in the Exchange Offer will be subject to a prospectus delivery requirement with respect to resales of those Exchange Notes. The Commission has taken the position that such broker-dealers may fulfill their prospectus delivery

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requirements with respect to the Exchange Notes (other than a resale of an unsold allotment from the original sale of the Notes) by delivery of the prospectus contained in the Exchange Registration Statement. Under the Registration Rights Agreement, the Company has agreed to allow such broker-dealers to use the prospectus contained in the Exchange Registration Statement in connection with the resale of the Exchange Notes. The Exchange Registration Statement will be kept effective for a period ending upon the earlier of 180 days after the Exchange Offer has been consummated and such time as such broker-dealers no longer own any Registrable Securities.

        If (i) on or prior to the time the Exchange Offer is completed existing Commission interpretations are changed such that the Exchange Notes received in the Exchange Offer would not in general be, upon receipt, transferable by holders thereof without restrictions under the Securities Act; (ii) the Exchange Offer has not been completed within 225 days following the Issue Date; or (iii) the Exchange Offer is not available to any holder of the Notes, the Company and the Guarantors shall, in lieu of (or, in the case of clause (iii), in addition to) conducting the Exchange Offer, file under the Securities Act a "shelf" registration statement providing for the registration of, and the sale on a continuous or delayed basis by the holders of, all of the Registrable Securities (the "Shelf Registration Statement").

        The Registration Rights Agreement will provide that the Company:

        A Holder that sells Notes pursuant to the Shelf Registration Statement generally would be required to be named as a selling security-holder in the related prospectus and to deliver a prospectus to purchasers, will be subject to certain of the civil liability provisions under the Securities Act in connection with such sales and will be bound by the provisions of the Registration Rights Agreement which are applicable to such a Holder (including certain indemnification obligations). The Company will provide a copy of the Registration Rights Agreement to prospective investors upon request.

        In the event that:

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(each such event referred to in clauses (a) through (d), a "Registration Default" and, each period during which a Registration Default has occurred and is continuing, a "Registration Default Period"), then, in addition to the interest on the Notes, liquidated damages ("Liquidated Damages") shall accrue at a per annum rate of 0.25% for the first 90 days of the Registration Default Period, at a per annum rate of 0.50% for the second 90 days of the Registration Default Period, at a per annum rate of 0.75% for the third 90 days of the Registration Default Period and at a per annum rate of 1.0% thereafter, for the remaining portion of the Registration Default Period. Liquidated Damages shall be paid on interest payment dates to holders of record for the payment of interest.

        Holders of Notes will be required to make certain representations to the Company and to deliver information to be used in connection with the Shelf Registration Statement (in each case, as described in the Registration Rights Agreement) and will be required to provide comments on the Shelf Registration Statement within the time periods set forth in the Registration Rights Agreement in order to have their Notes included in the Shelf Registration Statement and benefit from the provisions regarding Liquidated Damages set forth above.

        The Notes and the Exchange Notes will be considered collectively to be a single class for all purposes under the Indenture, including, without limitation, waivers, amendments, redemptions and offers to purchase, and for purposes of this Description of Notes (except in this "Registration Rights; Exchange Offer" section), all references herein to "Notes" shall be deemed to refer collectively to Notes and any Exchange Notes, unless the context otherwise requires.

Form, Denomination, Transfer, Exchange and Book-Entry Procedures

        The original notes were offered only to qualified institutional buyers in reliance on Rule 144A (the "Rule 144A Notes") and in offshore transactions in reliance on Regulation S (the "Regulation S Notes"). The Company will issue Notes only in fully registered form, without interest coupons, in denominations of $1,000 and integral multiples of $1,000. The Company will not issue Notes in bearer form.

Global Notes

        The Exchange Notes will be represented by one or more notes in registered, global form without interest coupons (collectively, the "Global Notes"). The Global Notes will be deposited upon issuance with the Trustee as custodian for The Depository Trust Company ("DTC"), in New York, New York, and registered in the name of DTC or its nominee, in each case for credit to an account of a direct or indirect participant in DTC, including Euroclear Bank S.A./N.V. (as operator of the Euroclear system, "Euroclear") and Clearstream Banking Luxembourg ("Clearstream").

        Except as set forth below, the Global Notes may be transferred, in whole and not in part, only to another nominee of DTC or to a successor of DTC or its nominee. Beneficial interests in the Global Notes may not be exchanged for Notes in certificated form except in the limited circumstances described below under "—Exchange of Book-Entry Notes for Certificated Notes." Except in the limited circumstances described below, owners of beneficial interests in the Global Notes will not be entitled to receive physical delivery of Notes in certificated form.

        Transfers of beneficial interests in the Global Notes will be subject to the applicable rules and procedures of DTC and its direct or indirect participants (including, if applicable, those of Euroclear and Clearstream), which may change from time to time.

        The Notes may be presented for registration of transfer and exchange at the offices of the Registrar.

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        You may not exchange your beneficial interest in a Global Note for a definitive Note in registered certificated form unless:

        In addition, beneficial interests in a Global Note may be exchanged for certificated Notes upon request but only upon at least 20 days' prior written notice given to the Trustee by or on behalf of DTC in accordance with customary procedures. In all cases, certificated Notes delivered in exchange for any Global Note or beneficial interest therein will be registered in the names, and issued in any approved denominations, requested by or on behalf of the depositary (in accordance with its customary procedures).

        The description of the operations and procedures of DTC, Euroclear and Clearstream contained in this prospectus is provided solely as a matter of convenience. These operations and procedures are solely within their control and are subject to change by them from time to time. The Company takes no responsibility for these operations and procedures and urges you to contact the system or its participants directly to discuss these matters.

        DTC has advised the Company as follows: DTC is a limited purpose trust company organized under the laws of the State of New York, a member of the Federal Reserve System, a "clearing corporation" with the meaning of the Uniform Commercial Code and a "Clearing Agency" registered pursuant to the provisions of Section 17A of the Exchange Act. DTC was created to hold securities for its participating organizations (collectively, "participants") and to facilitate the clearance and settlement of securities transactions between participants through electronic book-entry changes in accounts of participants. The participants include securities brokers and dealers, banks, trust companies, clearing corporations and certain other organizations. Indirect access to DTC's system is also available to other entities such as banks, brokers, dealers and trust companies that clear through or maintain a custodial relationship with a participant, either directly or indirectly (collectively, "indirect participants"). Persons who are not participants may beneficially own securities held by or on behalf of DTC only through the participants or indirect participants. The ownership interest and transfer of ownership interest of each actual purchaser of each security held by or on behalf of DTC are recorded on the records of the participants and indirect participants.

        DTC has advised the Company that pursuant to procedures established by it, (i) upon deposit of the Global Notes, DTC will credit the respective principal amounts of the individual beneficial interests represented by such Global Notes to the accounts with DTC of participants designated by the Initial Purchaser as holding such interests and (ii) ownership of such interests in the Global Notes will be shown on, and the transfer of ownership thereof will be effected only through, records maintained by DTC or its nominees (with respect to interests of participants) or by participants and the indirect participants (with respect to other owners of beneficial interests in the Global Notes).

        As long as DTC, or its nominee, is the registered holder of a Global Note, DTC or such nominee, as the case may be, will be considered the sole owner and holder of the Notes represented by such Global Note for all purposes under the Indenture and the Notes. Except in the limited circumstances

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described above under "—Exchanges of Book-Entry Notes for Certificated Notes," you will not be entitled to have any portion of a Global Notes registered in your name, will not be entitled to receive physical delivery of Notes in certificated form and will not be considered the registered owners or holder of a Global Note (or any Note represented thereby) under the Indenture or the Notes for any purpose.

        You may hold your interests in the Global Notes directly through DTC, if you are a participant in such system, or indirectly through organizations (including Euroclear and Clearstream) which are participants in such system. All interests in a Global Note, including those held through Euroclear or Clearstream, will be subject to the procedures and requirements of DTC. Those interests held through Euroclear or Clearstream also will be subject to the procedures and requirements of such system.

        The laws of some states require that certain persons take physical delivery in definitive form of securities that they own. Consequently, your ability to transfer your beneficial interest in a Global Note to such persons may be limited to that extent. Because DTC can act only on behalf of participants which in turn act on behalf of indirect participants and certain banks, your ability to pledge your interest in a Global Note to persons or entities that do not participate in the DTC system, or to otherwise take actions in respect of such interest, may be affected by the lack of a physical certificate evidencing such interest. For certain other restrictions on the transferability of the Notes, see "—Exchange of Book-Entry Notes for Certificated Notes."

        Payments in respect of the principal, premium, interest and Liquidated Damages (if any) on a Global Note registered in the name of DTC or its nominee will be payable by the Trustee to DTC or its nominee in its capacity as the registered Holder under the Indenture. Under the terms of the Indenture, the Company and the Trustee will treat the persons in whose names the Notes, including the Global Notes, are registered as the owners thereof for the purpose of receiving such payments and for any and all other purposes whatsoever. Consequently, none of the Company, the Trustee or any agent of the Company or the Trustee has or will have any responsibility or liability for (i) any aspect of DTC's records or any participant's or indirect participant's records relating to or payments made on account of beneficial ownership interests in the Global Notes, or for maintaining, supervising or reviewing any of DTC's records or any participant's or indirect participant's records relating to the beneficial ownership interests in the Global Notes or (ii) any other matter relating to the actions and practices of DTC or any of its participants or indirect participants.

        DTC has advised the Company that its current practices, upon receipt of any payment (including principal and interest) in respect of securities such as a Global Note representing any Notes held by it or its nominees, is to credit the accounts of the relevant participants with the payment on the payment date, in amounts proportionate to their respective beneficial interests in the principal amount of such Global Notes as shown on the records of DTC. Payments by participants and indirect participants to the beneficial owners of Notes will be governed by standing instructions and customary practices and will not be the responsibility of DTC, the Trustee or the Company. None of the Company or the Trustee will be liable for any delay by DTC or its participants in identifying the beneficial owners of the Notes, and the Company and the Trustee may conclusively rely on and will be protected in relying on instructions from DTC or its nominee as the registered owner of the Notes for all purposes.

        Except for the trades involving only Euroclear and Clearstream participants, interests in the Global Note will trade in DTC's settlement system, and secondary market trading activity in such interests will therefore settle in immediately available funds, subject in all cases to the rules and procedures of DTC and its participants. Transfers between participants in DTC will be effected in accordance with DTC's procedures, and will be settled in same-day funds. Transfers between participants in Euroclear and Clearstream will be effected in the ordinary way in accordance with their respective rules and operating procedures.

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        Subject to compliance with the transfer and exchange provisions applicable to the Notes described elsewhere herein, cross-market transfers between DTC participants, on the one hand, and Euroclear or Clearstream participants, on the other hand, will be effected by DTC in accordance with DTC's rules on behalf of Euroclear and Clearstream, as the case may be, by its respective depository; however, such cross-market transactions will require delivery of instructions to Euroclear or Clearstream, as the case may be, by the counterparty in such system in accordance with the rules and procedures and within the established deadlines (Brussels time) of such system. Euroclear or Clearstream, as the case may be, will, if the transaction meets its settlement requirements, deliver instructions to its respective depository to take action to effect final settlement on its behalf by delivering or receiving interests in the relevant Global Note in DTC, and making or receiving payment in accordance with normal procedures for same-day funds settlement applicable to DTC. Euroclear participants and Clearstream participants may not deliver instructions directly to the depositories for Euroclear or Clearstream.

        Because of time zone differences, the securities account of a Euroclear or Clearstream participant purchasing an interest in a Global Note from a DTC participant will be credited, and any such crediting will be reported to the relevant Euroclear or Clearstream participant, during the securities settlement processing day (which must be a business day for Euroclear and Clearstream) immediately following the DTC settlement date. Cash received in Euroclear or Clearstream as a result of sales of interests in a Global Note by or through a Euroclear or Clearstream participant to a DTC participant will be received with value on the DTC settlement date but will be available in the relevant Euroclear or Clearstream cash account only as of the business day for Euroclear or Clearstream following the DTC settlement date.

        DTC has advised the Company that it will take any action permitted to be taken by a holder of Notes (including the presentation of Notes for exchange as described below) only at the direction of one or more participants to whose account DTC interests in the Global Notes are credited and only in respect of such portion of the aggregate principal amount of the Notes as to which such participant or participants has or have given direction. However, if there is an Event of Default under the Notes, DTC reserves the right to exchange Global Notes for legended Notes in certificated form, and to distribute such Notes to its participants.

        The information in this section concerning DTC and its book-entry system, as well as Euroclear and Clearstream, has been obtained from sources believed to be reliable, but the Company takes no responsibility for the accuracy thereof.

        Although DTC, Euroclear and Clearstream have agreed to the foregoing procedures to facilitate transfers of interests in the Global Notes among participants in DTC, they are under no obligation to perform or to continue to perform such procedures, and such procedures may be discontinued at any time. Neither the Company, the Trustee or any of their respective agents will have any responsibility for the performance by DTC, Euroclear or Clearstream or their participants or indirect participants of their respective obligations under the rules and procedures governing their operations, including maintaining, supervising or reviewing the records relating to, or payments made on account of, beneficial ownership interests in the Global Notes.

        The Indenture requires that payments in respect of the Notes represented by a Global Note (including principal, premium, if any, interest and liquidated damages, if any, thereon) be made by wire transfer of immediately available next day funds to the accounts specified by the Global Note Holder. With respect to Certificated Notes, the Company will make all payments of principal, premium, if any, interest and liquidated damages, if any, thereon by wire transfer of immediately available funds to the accounts specified by the Holders thereof or, if no such account is specified, by mailing a check to each such Holder's registered address.

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CERTAIN UNITED STATES FEDERAL INCOME TAX CONSEQUENCES

        The following is a summary of certain U.S. federal income tax consequences associated with the exchange of the original notes for the exchange notes pursuant to the Exchange Offer. This summary is based upon the Internal Revenue Code of 1986, as amended (the "Code"), Treasury Department regulations, administrative pronouncements of the Internal Revenue Service and judicial decisions, all of which are subject to change, possibly with retroactive effect. This summary does not address all of the U.S. federal income tax consequences that may be applicable to particular holders, including dealers in securities, financial institutions, insurance companies, foreign corporations, tax-exempt entities and individuals who are not citizens or residents of the U.S. In addition, this summary does not include any description of the effect of any state, local, foreign or other tax laws that may be applicable to a holder.

        Exchange of the original notes for the exchange notes pursuant to the Exchange Offer will not be treated as a taxable exchange for U.S. federal income tax purposes because the exchange notes do not differ materially in either kind or extent from the original notes and because the exchange will occur pursuant to and in accordance with the terms of the original notes. Rather, for U.S. federal tax purposes, the exchange notes received by a holder will be treated as a continuation of the original notes in the hands of the holder. As a result, there generally will be no U.S. federal income tax consequences to holders that exchange the original notes for the exchange notes pursuant to the Exchange Offer. In addition, any "market discount" on the original notes should carry over to the exchange notes. Holders should consult their tax advisors regarding application of the market discount rules to the exchange notes received in exchange for the original notes pursuant to the Exchange Offer.

        Interest accruing throughout the term of the exchange notes at a rate of 10% per annum generally will be taxable to the holder as ordinary interest income at the time it accrues or is received in accordance with the holder's regular method of accounting for U.S. federal tax purposes. If Liquidated Damages are paid on the original notes (in addition to payment of interest at a rate of 10% per annum) as described above under "Description of Notes—Registration Rights, Exchange Offer," such Liquidated Damages payments generally should be includable in the holder's gross income at the time the payment accrues or is received by the holder in accordance with the holder's regular method of accounting for U.S. federal tax purposes.

THIS SUMMARY DOES NOT DISCUSS ALL ASPECTS OF UNITED STATES FEDERAL INCOME TAXATION THAT MAY BE RELEVANT TO A PARTICULAR HOLDER OF THE NOTES BECAUSE OF HIS, HER OR ITS PARTICULAR CIRCUMSTANCES AND INCOME TAX SITUATION. EACH HOLDER OF THE NOTES SHOULD CONSULT HIS, HER OR ITS TAX ADVISOR AS TO THE SPECIFIC TAX CONSEQUENCES TO SUCH HOLDER OF THE EXCHANGE OF ORIGINAL NOTES FOR EXCHANGE NOTES AND OF THE OWNERSHIP AND DISPOSITION OF THE NOTES, INCLUDING APPLICATION AND EFFECT OF STATE, LOCAL, FOREIGN AND OTHER TAX LAWS OR CHANGES IN THOSE LAWS.


PLAN OF DISTRIBUTION

        Each broker-dealer that receives exchange notes for its own account in connection with the Exchange Offer must acknowledge that it will deliver a prospectus in connection with any resale of such exchange notes. This Prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with resales of exchange notes received in exchange for original notes where the original notes were acquired as a result of market-making activities or other trading activities. We have agreed that for a period ending on the earlier of (i) 180 days after the exchange offer has been completed and (ii) the date on which a broker-dealer is no longer required to deliver a prospectus in connection with market making or other trading activities, we will make available and provide promptly upon reasonable request this prospectus (as amended or supplemented),

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in a form meeting the requirements of the Securities Act to any broker-dealer for use in connection with any such resale.

        We will receive no proceeds in connection with the Exchange Offer. Exchange notes received by broker-dealers for their own account pursuant to the Exchange Offer may be sold from time to time in one or more transactions in the over-the-counter market, in negotiated transactions, through the writing of options on the exchange notes or a combination of such methods of resale, at market prices prevailing at the time of resale, at prices related to such prevailing market prices or negotiated prices. Any such resale may be made directly to purchasers or through brokers or dealers who may receive compensation in the form of commissions or concessions from any such broker-dealer and/or the purchasers of any such exchange notes. Any broker-dealer that resells exchange notes that were received by it for its own account pursuant to the Exchange Offer and any broker or dealer that participates in a distribution of such exchange notes may be deemed to be an "underwriter" within the meaning of the Securities Act, and any profit on any such resale of exchange notes and any commissions or concessions received by any such persons may be deemed to be underwriting compensation under the Securities Act. The Letter of Transmittal states that by acknowledging that it will deliver, and by delivering, a prospectus, a broker-dealer will not be deemed to admit that it is an "underwriter" within the meaning of the Securities Act.

        We have agreed to indemnify the holders of the notes, including any broker-dealers, against certain liabilities, including liabilities under the Securities Act.


LEGAL MATTERS

        The validity of the issuance of the exchange notes will be passed upon for the Company by Stoel Rives LLP, Portland, Oregon and Holme Roberts & Owen LLP, Denver, Colorado.


EXPERTS

        The consolidated financial statements of Oregon Steel Mills, Inc. incorporated in this Prospectus by reference to the Annual Report on Form 10-K of Oregon Steel Mills, Inc. for the year ended December 31, 2001 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, independent accountants, given on the authority of said firm as experts in auditing and accounting.

        The consolidated financial statements of New CF&I, Inc. incorporated in this Prospectus by reference to the Annual Report on Form 10-K of New CF&I Inc. and CF&I Steel L.P. for the year ended December 31, 2001 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, independent accountants, given on the authority of said firm as experts in auditing and accounting.

        The consolidated financial statements of CF&I Steel L.P. incorporated in this Prospectus by reference to the Annual Report on Form 10-K of New CF&I Inc. and CF&I Steel L.P. for the year ended December 31, 2001 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, independent accountants, given on the authority of said firm as experts in auditing and accounting.

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        No dealer, sales representative, or any other person has been authorized to give any information or to make any representations in connection with this offering other than those contained in this prospectus and, if given or made, such information or representations must not be relied upon as having been authorized by the Company or the Initial Purchaser. This prospectus does not constitute an offer to sell or a solicitation of any offer to buy any securities other than the notes to which it relates or an offer to, or a solicitation of, any person in any jurisdiction where such an offer or solicitation would be unlawful. Neither the delivery of this prospectus nor any sale made hereunder shall, under any circumstances, create an implication that there has been no change in the affairs of the Company or that information contained herein is correct as of any time subsequent to the date hereof.

TABLE OF CONTENTS

 
   Page
Incorporation of Certain Documents by Reference   1
Where You Can Find Additional Information   4
Summary   5
Risk Factors   15
Use of Proceeds   33
Ratio of Earnings to Fixed Charges   33
Selected Historical Consolidated Financial Data   34
The Exchange Offer   36
Description of Notes   47
Certain United States Federal Income Tax Consequences   120
Plan of Distribution   120
Legal Matters   121
Experts   121

$305,000,000

OREGON STEEL MILLS, INC.

10% First Mortgage Notes due 2009

PROSPECTUS

, 2002


PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

Item 20. Indemnification of Officers and Directors

        Section 145 of the General Corporation Law of the State of Delaware (the "GCL") provides, in summary, that a corporation may indemnify a director, officer, employee or agent of a corporation (i) in the case of third-party claims, against certain expenses incurred by such person in connection with any action, suit or proceeding brought or threatened against such person by reason of the fact that he or she is or was a director, officer, employee or agent of the corporation, if such person acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation, and (ii) in the case of actions by or in the right of the corporation, against certain expenses incurred by such person in connection with the defense or settlement of such an action, if such person acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation; provided, however, that, in the case of actions by or in the right of the corporation, if such person is adjudged to be liable to the corporation, no indemnification can be made unless a court determines that such person is fairly and reasonably entitled to indemnification. Indemnification also is authorized with respect to any criminal action or proceeding where, in addition to the criteria stated under (i) above, a director, officer, employee or agent had no reasonable cause to believe that his or her conduct was unlawful. Section 145 of the GCL furthermore provides that a corporation must indemnify a director, officer, employee or agent of the corporation to the extent that he or she is successful on the merits or otherwise in defending any of the actions, suits or proceedings described above. Oregon Steel's Restated Certificate of Incorporation (the "Restated Certificate") and Bylaws and New CF&I, Inc.'s Certificate of Incorporation (the "Certificate") and Bylaws provide for the indemnification by Oregon Steel and New CF&I, Inc. of their respective directors, officers, employees and agents to the fullest extent permitted by Section 145 of the Delaware GCL. Additionally, Section 145 of the Delaware GCL permits a corporation to purchase and maintain insurance on behalf of its directors, officers, employees and agents against any liability asserted against such persons and incurred by such persons, or arising out of such persons' status as such. Oregon Steel maintains an insurance policy covering its directors and officers against such liability. Oregon Steel also has entered into indemnification agreements with certain executive officers.

        Section 102 of the Delaware GCL provides that a corporation, in its Certificate of Incorporation, may eliminate the personal liability of its directors to the corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, other than liability for (1) any breach of the director's duty of loyalty to the corporation or its stockholders, (2) acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (3) any transaction from which the director derived an improper personal benefit and (4) unlawful payment of dividends or unlawful stock purchases or redemptions. The Restated Certificate of Oregon Steel and the Certificate of New CF&I each provide for the elimination, to the fullest extent permitted by law, of personal liability of its directors for monetary damages for breach of fiduciary duty as a director. Reference is made to the Restated Certificate of Oregon Steel and the Certificate of New CF&I filed as Exhibits 3.1 and 3.2, respectively.

Item 21. Exhibits and Financial Statement Schedules

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II-2

Item 22. Undertakings

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SIGNATURES

        Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Portland, State of Oregon, on August 15, 2002.

    OREGON STEEL MILLS, INC.

 
 
By:
 
L. RAY ADAMS
L. Ray Adams
 Vice President-Finance, Chief Financial Officer
and Treasurer

        Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed below by the following persons on August 15, 2002 in the capacities indicated.


POWER OF ATTORNEY

        KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints Joe E. Corvin, L. Ray Adams and Jeff S. Stewart or any one of them, his true and lawful attorneys-in-fact and agents, each with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any amendments (whether pre-effective or post-effective) to this Registration Statement and any registration statement for the same offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act of 1933, and to file the same with all exhibits thereto and other documents in connection therewith with the Securities and Exchange Commission, granting unto each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person,

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hereby ratifying and confirming all that each of said attorneys-in-fact and agents, or their substitute or substitutes, may do or cause to be done by virtue hereof.

Signature
   Title

 
 
 
JOE E. CORVIN
Joe E. Corvin		   President and Chief
Executive Officer and Director
(Principal Executive Officer)

L. RAY ADAMS
L. Ray Adams
 
Vice President-Finance, Chief Financial Officer
and Treasurer (Principal Financial Officer)

JEFF S. STEWART
Jeff S. Stewart
 
Corporate Controller
(Principal Accounting Officer)

WILLIAM SWINDELLS
William Swindells
 
Chairman of the Board

JAMES E. DECLUSIN
James E. Declusin
 
Director

HARRY L. DEMOREST
Harry L. Demorest
 
Director

CARL W. NEUN
Carl W. Neun
 
Director

DAVID L. PARKINSON
David L. Parkinson
 
Director

STEPHEN P. REYNOLDS
Stephen P. Reynolds
 
Director

JOHN A. SPROUL
John A. Sproul
 
Director

FRANK M. WALKER
Frank M. Walker
 
Director


SIGNATURES

        Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Portland, State of Oregon, on August 15, 2002.

    NEW CF&I, INC.

 
 
By:
 
L. RAY ADAMS
L. Ray Adams
 Vice President-Finance, Chief Financial Officer
and Treasurer

        Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed below by the following persons on August 15, 2002 in the capacities indicated.

II-6


POWER OF ATTORNEY

        KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints Joe E. Corvin, L. Ray Adams and Jeff S. Stewart or any one of them, his true and lawful attorneys-in-fact and agents, each with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any amendments (whether pre-effective or post-effective) to this Registration Statement and any registration statement for the same offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act of 1933, and to file the same with all exhibits thereto and other documents in connection therewith with the Securities and Exchange Commission, granting unto each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that each of said attorneys-in-fact and agents, or their substitute or substitutes, may do or cause to be done by virtue hereof.

Signature
   Title

 
 
 
JOE E. CORVIN
Joe E. Corvin		   President and Chief
Executive Officer and Director
(Principal Executive Officer)

L. RAY ADAMS
L. Ray Adams
 
Vice President-Finance, Chief Financial Officer,
Treasurer and Director (Principal Financial Officer)

JEFF S. STEWART
Jeff S. Stewart
 
Corporate Controller
(Principal Accounting Officer)

STEVEN M. ROWAN
Steven M. Rowan
 
Director

KEIICHIRO SHIMAKAWA
Keiichiro Shimakawa
 
Director


SIGNATURES

        Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Portland, State of Oregon, on August 15, 2002.

    CF&I STEEL, L.P.

 
 
By:
 
NEW CF&I, INC.,
its General Partner

 
 
By:
 
L. RAY ADAMS
L. Ray Adams
 Vice President-Finance, Chief Financial Officer
and Treasurer

        Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed below by the following persons on August 15, 2002 in the capacities indicated.

II-7


POWER OF ATTORNEY

        KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints Joe E. Corvin, L. Ray Adams and Jeff S. Stewart or any one of them, his true and lawful attorneys-in-fact and agents, each with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any amendments (whether pre-effective or post-effective) to this Registration Statement and any registration statement for the same offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act of 1933, and to file the same with all exhibits thereto and other documents in connection therewith with the Securities and Exchange Commission, granting unto each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that each of said attorneys-in-fact and agents, or their substitute or substitutes, may do or cause to be done by virtue hereof.

Signature
   Title

 
 
 
JOE E. CORVIN
Joe E. Corvin		   President and Chief
Executive Officer and Director
(Principal Executive Officer)

L. RAY ADAMS
L. Ray Adams
 
Vice President-Finance, Chief Financial Officer,
Treasurer and Director (Principal Financial Officer)

JEFF S. STEWART
Jeff S. Stewart
 
Corporate Controller
New CF&I Inc. (Principal Accounting Officer)

STEVEN M. ROWAN
Steven M. Rowan
 
Director

KEIICHIRO SHIMAKAWA
Keiichiro Shimakawa
 
Director

II-8



QuickLinks

TABLE OF ADDITIONAL REGISTRANTS
TABLE OF CONTENTS
INCORPORATION OF DOCUMENTS BY REFERENCE
DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS
INDUSTRY AND MARKET DATA
WHERE YOU CAN FIND ADDITIONAL INFORMATION
SUMMARY
GENERAL
THE COMPANY
SUMMARY OF THE EXCHANGE OFFER
THE EXCHANGE NOTES
RISK FACTORS
RISKS RELATING TO THE EXCHANGE OFFER
RISKS RELATED TO OUR SUBSTANTIAL DEBT
RISKS RELATED TO THE NOTES
RISKS RELATING TO OUR BUSINESS
USE OF PROCEEDS
RATIO OF EARNINGS TO FIXED CHARGES
SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA
THE EXCHANGE OFFER
DESCRIPTION OF NOTES
CERTAIN UNITED STATES FEDERAL INCOME TAX CONSEQUENCES
PLAN OF DISTRIBUTION
LEGAL MATTERS
EXPERTS
PART II INFORMATION NOT REQUIRED IN PROSPECTUS
SIGNATURES
POWER OF ATTORNEY
SIGNATURES
POWER OF ATTORNEY
SIGNATURES
POWER OF ATTORNEY