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SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549
 Form 10-K/A Amendment No. 1 to the Annual Report Pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934 For the Fiscal Year Ended December 31, 2003
    
    Commission file number 1-31926
 International Steel Group Inc. (Exact Name of Registrant as Specified in Its Charter)
 Delaware(State or Other Jurisdiction of
Incorporation or Organization)
    
    71-0871875(I.R.S. Employer
Identification Number)3250 Interstate Drive Richfield, Ohio(Address of Registrants Principal Executive Offices)
    
    44286-9000(Zip Code)
 Registrants telephone number including area code: (330) 659-9100 Securities registered pursuant to Section 12(b) of the Act: Title of Each Class
Common Stock par value $0.01
    
    Name of Each Exchange on Which Registered
New York Stock Exchange
 Securities registered pursuant to Section 12(g) of the Act:
None Indicate by check mark the registrant (1) has filed all reports required to be filed by
Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for
such shorter period that the registrant was required to file such reports), and (2) has been
subject to such filing requirements for the past 90 days. Yes þ No o Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation
S-K is not contained herein, and will not be contained, to the best of registrants knowledge, in
definitive proxy or information statements incorporated by reference in Part III of this Form 10-K
or any amendment to this Form 10-K. Yes þ No o Indicate by check mark whether the registrant is an accelerated filer (as defined in rule
12b-2 of the Exchange Act.) Yes o No þ Aggregate market value of common equity held by non-affiliates: $1,202.6 million Shares of the registrants common stock were not traded on June 28, 2003, the last day of the
registrants second fiscal quarter in 2003. The amount shown is based on $28.00 per share, the
offering price of registrants Common Stock in its initial public offering, which priced on
December 11, 2003, gives effect to the conversion of ISGs Class B Common Stock into Common Stock
which occurred with the consummation of the initial public offering and reflects the shares held
immediately after the consummation of the initial public offering. Voting stock held by directors,
executive officers and certain significant stockholders of International Steel Group Inc. is not
included in the computation. However, International Steel Group Inc. has made no determination that
such individuals are affiliates within the meaning of federal securities law. Number of common shares outstanding as of February 29, 2004: 97,470,609 Documents incorporated by reference:The Proxy Statement for the 2004 Annual Meeting of
Stockholders is incorporated into Part III.




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Amendment No. 1 to the Annual Report
For the Year Ended December 31, 2003 EXPLANATORY NOTE International Steel Group, Inc. (ISG) is filing this Amendment No. 1 to its Form 10-K for the
fiscal year ended December 31, 2003 (this Amendment) to amend its disclosure in Part II, Item 9A
of its annual report on Form 10-K filed on March 11, 2004 (the Annual Report). The purpose of
this Amendment is to provide expanded disclosure of managements conclusions regarding ISGs
disclosure controls and procedures and changes that had been made in ISGs internal controls over
financial reporting due, in part, to the evolving requirements of compliance with Item 307 and
308(c) of Regulation S-K. ISGs consolidated statements of operations, consolidated balance sheets
or consolidated statements of cash flows in the Annual Report have not been changed. The complete
text of the item amended is included in the Amendment pursuant to Rule 12b-15 promulgated under the
Securities Exchange Act of 1934. As a result, this Amendment amends and restates in its entirety
only Part II, Item 9A of the Annual Report. It does not affect any other Items in the Annual
Report, and those unaffected Items are not included in this Amendment. This Amendment continues to speak as of the date of the original Annual Report and ISG has not
updated the disclosure contained herein to reflect events that have occurred since the filing of
the original Annual Report. Accordingly, this Form 10-K/A should be read in conjunction with ISGs
other filings made with the Securities and Exchange Commission subsequent to the filing of the
original Annual Report, including any amendments to those filings. 1




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PART II ITEM 9A. CONTROLS AND PROCEDURES Under the supervision and with the participation of our management, including our principal
executive officer and principal financial officer, we conducted an evaluation of the effectiveness
of the design and operation of our disclosure controls and procedures, as defined in Rules
13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (Exchange Act), as of
December 31, 2003 (Evaluation Date). Based on this evaluation, our principal executive officer and
principal financial officer concluded as of the Evaluation Date that our disclosure controls and
procedures were effective such that the information relating to ISG and consolidated subsidiaries,
required to be disclosed in our Securities and Exchange Commission (SEC) reports (i) is recorded,
processed, summarized and reported within the time periods specified in SEC rules and forms, and
(ii) is accumulated and communicated to ISG management, including our principal executive officer
and principal financial officer, as appropriate to allow timely decisions regarding required
disclosure. While our chief executive officer and chief financial officer concluded that our disclosure
controls and procedures were effective as of the Evaluation Date, we note that as of the Evaluation
Date ISG had been a public company for only 19 days and had not made any Exchange Act filings. The
rapid growth we have experienced since we were established in February 2002 has placed a
significant strain on our internal controls over financial reporting, which management has been
monitoring. In March 2004 management communicated to our Audit Committee of the Board of Directors
and represented to KPMG, our independent auditors, that significant deficiencies in documentation,
consistency, review and information systems, among other issues, when taken in the aggregate,
amount to material weaknesses in our internal control over financial reporting, which are the
policies and procedures in place that allow our management and employees, in the normal course of
performing their assigned functions, to provide reasonable assurance regarding the reliability of
our financial reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles. Specifically, the significant
deficiencies in our internal control over financial reporting included the following items:  
    Documentation. Our financial reporting policies and procedures
were not adequately documented, and we are still in the process of developing
a documented closing process, including the assignment of specific
responsibilities to individuals and establishment of deadlines,
and a standard monthly financial closing process and calendar. In
addition, records of certain journal entries along with
appropriate supporting documentation have not been consistently
maintained at all of our locations.  
    Consistency. Our policies and procedures in our financial
reporting were not applied consistently during 2003, and some of
our period-end procedures relating to certain accruals, such as
workers compensation and health insurance, were not consistent
across all of our facilities. We also needed to improve procedures
to provide reasonable assurance that the methods to determine
actual costs and to account for raw material inventories were
applied consistently at our various facilities.  
    Review. We needed to improve procedures to review certain journal
entries and certain account balances of our operating facilities
and the reasonableness of our environmental, litigation, insurance
and accounts receivable reserves. We also needed to improve the
communication between our corporate headquarters and plant
accounting departments, and between and within certain departments
at our corporate headquarters.  
    Information Systems. Our consolidation procedures have generally
involved manual, non-automated processes, and our accounting
information systems need improvement. As discussed below, the disclosure controls and procedures utilized in the preparation of our
Exchange Act filings to the present date, including this Annual Report, have included measures to
provide reasonable assurance that, notwithstanding these significant deficiencies, the information
required to be disclosed in these Exchange Act filings was recorded, processed, summarized and
reported within the time period specified in SEC rules and forms, and was 2




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accumulated and communicated to our management, including our chief executive officer and our chief
financial officer, as appropriate to allow timely decisions regarding required disclosure. In preparing our Exchange Act filings, including this Annual Report, we implemented
extraordinary processes and procedures to provide reasonable assurance that the significant
deficiencies and material weaknesses in our internal control over financial reporting that
management communicated to our Audit Committee and represented to KPMG in March 2004 were mitigated
with respect to the information relating to ISG that was required to be disclosed in our Exchange
Act filings. We have expended substantial financial resources, and our senior management and
outside counsel have devoted significant time and attention, in support of our efforts to mitigate
the effects of those weaknesses on our disclosure controls. We have placed employees with
significant accounting expertise in new supervisory assignments and our management and employees
have spent a substantial amount of additional time, well over and above what would normally be
required within the scope of their job responsibilities, reviewing account balances and the
required disclosures that were included in these filings. All of these efforts, in the aggregate,
were designed to address the potential misstatements that could arise as a result of the
significant deficiencies in documentation, consistency, review and information systems. Some of the specific steps that we took to mitigate the aggregate effect of the significant
deficiencies in documentation, consistency, review and information systems on our disclosure
controls included the following:  
    Additional review of account balances. Our management and
employees performed additional reviews of account balances for
reasonableness and for any potential misstatements arising from,
among other things, lack of documentation, inconsistent
application of our accounting policies and procedures and
insufficient review, in each case that could potentially affect
our Exchange Act filings in any material respect.  
    Additional review for misstatements arising from use of
non-automated processes. Our management and employees also
undertook additional review and verification steps in the
preparation of our Exchange Act filings to detect any potential
misstatements that may have resulted from use of manual,
non-automated processes and our current information systems.  
    Additional communication among ISG personnel. In the preparation
of our Exchange Act filings, our management took additional steps
to provide reasonable assurance that our plant and corporate
accounting staffs had adequately communicated with each other and
other departments within our corporate headquarters.  
    Additional review of accruals. In the preparation of our Exchange
Act filings, our management and employees spent additional time
providing reasonable assurance that consolidated period-end
accruals, such as accruals for workers compensation and health
insurance, were reasonable.  
    Additional review of reserves. In the preparation of our
Exchange Act filings, our management and employees spent
additional time reviewing the consolidated reserves, particularly
the environmental, litigation, insurance and accounts receivable
reserves, included in our Exchange Act filings for reasonableness
and the consistent application of our accounting policies. We believe that these extra processes and procedures, which are encompassed in our current
disclosure controls, have mitigated in the aggregate the potential effect of the identified
significant deficiencies in internal control over financial reporting in the areas of review,
communication, documentation, consistency and information systems on the disclosure that was
ultimately included in our Exchange Act filings. As a result of the above facts, we believe, and
our chief executive officer and chief financial officer have certified to their knowledge that,
this Annual Report does not contain any untrue statements of material fact or omit to state any
material fact necessary to make the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered in this Annual Report. With respect to our internal control over financial reporting, these significant deficiencies
are being discussed among management, our Audit Committee and KPMG. Management intends to review,
revise and improve our internal controls over financial reporting until the material weaknesses in
internal control over financial reporting are eliminated. 3




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PART IV ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K.  (a)
    Documents filed as part of this Report: The following is an index of the financial statements, schedules and exhibits included in
this Report or incorporated herein by reference. (1) Financial Statements and Schedules Independent Auditors Report Consolidated Statements of Operations, for the year ended December 31, 2003 and
for the period from inception, February 22, 2002, through December 31, 2002 Consolidated Balance Sheets as of December 31, 2003 and 2002 Consolidated Statements of Stockholders Equity for the year ended December 31, 2003 and
for the period from inception, February 22, 2002, through December 31, 2002 Consolidated Statements of Cash Flows, for the year ended December 31, 2003 and
for the period from inception, February 22, 2002, through December 31, 2002 Notes to Consolidated Financial Statements (2) Consolidated Financial Statement Schedules II  Valuation and Qualifying Accounts and Reserves, for the year ended December 31, 2003
and for the period from inception, February 22, 2002, through December 31, 2002 Schedules not included have been omitted because they are not applicable or the required
information is shown in the consolidated financial statement or notes. Separate financial statements of subsidiaries not consolidated and 50 percent or less owned
persons accounted for by the equity method have been omitted because, considered in the aggregate
as a single subsidiary, they do not constitute a significant subsidiary. (3) Exhibits ExhibitNumber
    
    Description of Document3.1
    
    Third Amended and Restated Certificate of Incorporation (incorporated
by reference to Exhibit 3.1 to the Registrants Registration Statement
on Form S-1 (Reg. No. 333-107524), as amended).3.2
    
    Amended and Restated Bylaws (incorporated by reference to Exhibit 3.2
to the Registrants Registration Statement on Form S-1 (Reg. No.
333-107524), as amended).4.1
    
    Specimen certificate for shares of common stock (incorporated by
reference to Exhibit 4.1 to the Registrants Registration Statement on
Form S-1 (Reg. No. 333-107524), as amended).4.2
    
    Form of Registration Rights Agreement by and among ISG and the
investors party thereto (incorporated by reference to Exhibit 4.2 to
the Registrants Registration Statement on Form S-1 (Reg. No.
333-107524), as amended).4.3
    
    Registration Rights Agreement, dated as of May 6, 2003, by and between
ISG and the Pension Benefit Guaranty Corporation (incorporated by
reference to Exhibit 4.3 to the Registrants Registration Statement on
Form S-1 (Reg. No. 333-107524), as amended).4.4
    
    Convertible Subordinated Promissory Note, dated as of May 6, 2003, by
ISG, as Maker and the Pension Benefit Guaranty Corporation, as Payee
(incorporated by reference to Exhibit 4.4 to the Registrants
Registration Statement on Form S-1 (Reg. No. 333-107524), as amended).
 4




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ExhibitNumber
    
    Description of Document10.1
    
    Credit and Guaranty Agreement, dated as of May 7, 2003, by and among
International Steel Group Inc., as a Guarantor, ISG Acquisition Inc.,
ISG Cleveland Inc., ISG Hennepin Inc., ISG Indiana Harbor Inc., ISG
Warren Inc., ISG Riverdale Inc., ISG Plate Inc., ISG Piedmont Inc., ISG
Burns Harbor, Inc., ISG Sparrows Point Inc., ISG Steelton Inc., and ISG
Lackawanna Inc., as Borrowers, certain subsidiaries of the company, as
Guarantors, the Lenders party thereto from time to time, UBS Securities
LLC, as Joint Lead Arranger and Joint Bookrunner, UBS AG, Stamford
Branch, as Administrative Agent, Goldman Sachs Credit Partners L.P., as
Joint Lead Arranger, Joint Bookrunner and Syndication Agent, The CIT
Group/Business Credit, Inc., as Collateral Agent, Fleet Capital
Corporation, as Co-Documentation Agent and LaSalle Bank National
Association, as Co-Documentation Agent (incorporated by reference to
Exhibit 10.1 to the Registrants Registration Statement on Form S-1
(Reg. No. 333-107524), as amended).10.2
    
    First Amendment to Credit and Guaranty Agreement, dated as of August
6, 2003, by and among International Steel Group Inc., as a Guarantor,
ISG Acquisition Inc., ISG Cleveland Inc., ISG Riverdale Inc., ISG Plate
Inc., ISG Piedmont Inc., ISG Burns Harbor, Inc., ISG Sparrows Point
Inc., ISG Steelton Inc., and ISG Lackawanna Inc., as Borrowers, certain
subsidiaries of the company, as Guarantors, the Lenders party thereto
from time to time, UBS Securities LLC, as Joint Lead Arranger and Joint
Bookrunner, UBS AG, Stamford Branch, as Administrative Agent, Goldman
Sachs Credit Partners L.P., as Joint Lead Arranger, Joint Bookrunner
and Syndication Agent, The CIT Group/Business Credit, Inc., as
Collateral Agent, Fleet Capital Corporation, as Co-Documentation Agent
and LaSalle Bank National Association, as Co-Documentation Agent
(incorporated by reference to Exhibit 10.2 to the Registrants
Registration Statement on Form S-1 (Reg. No. 333-107524), as amended).10.3
    
    Second Amendment and Limited Waiver to Credit and Guaranty Agreement,
dated as of September 30, 2003, by and among International Steel Group
Inc., as a Guarantor, ISG Acquisition Inc., ISG Cleveland Inc., ISG
Hennepin Inc., ISG Indiana Harbor Inc., ISG Warren Inc., ISG Riverdale
Inc., ISG Plate Inc., ISG Piedmont Inc., ISG Burns Harbor, Inc., ISG
Sparrows Point Inc., ISG Steelton Inc., and ISG Lackawanna Inc., as
Borrowers, certain subsidiaries of the company, as Guarantors, the
Lenders party thereto from time to time, UBS Securities LLC, as Joint
Lead Arranger and Joint Bookrunner, UBS AG, Stamford Branch, as
Administrative Agent, Goldman Sachs Credit Partners L.P., as Joint Lead
Arranger, Joint Bookrunner and Syndication Agent, The CIT
Group/Business Credit, Inc., as Collateral Agent, Fleet Capital
Corporation, as Co-Documentation Agent and LaSalle Bank National
Association, as Co-Documentation Agent (incorporated by reference to
Exhibit 10.3 to the Registrants Registration Statement on Form S-1
(Reg. No. 333-107524), as amended).10.4
    
    Amended and Restated International Steel Group Inc. Officer Cash and
Stock Bonus Plan dated as of July 16, 2003 (incorporated by reference
to Exhibit 10.4 to the Registrants Registration Statement on Form S-1
(Reg. No. 333-107524), as amended).10.5
    
    2002 Stock Option Plan of International Steel Group Inc. dated as of
June 28, 2002 (incorporated by reference to Exhibit 10.5 to the
Registrants Registration Statement on Form S-1
(Reg. No. 333-107524), as amended).10.6
    
    Release and Settlement Agreement, dated April 22, 2003, by and between
International Steel Group Inc. and the Pension Benefit Guaranty
Corporation (incorporated by reference to Exhibit 10.6 to the
Registrants Registration Statement on Form S-1 (Reg. No. 333-107524),
as amended).10.7
    
    Pellet Sale and Purchase Agreement, dated as of April 10, 2002 by and
among Cleveland-Cliffs Iron Company, Cliffs Mining Company, Northshore
Mining Company, Northshore Sales Company, ISG Cleveland Inc. and ISG
Indiana Harbor, Inc. (incorporated by reference to Exhibit 10.7 to the
Registrants Registration Statement on Form S-1 (Reg. No. 333-107524),
as amended).
 5




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ExhibitNumber
    
    Description of Document10.8
    
    Asset Purchase Agreement, dated as of February 26, 2002, by and among
WLR Acquisition Corp., LTV Steel Company, Inc., The River Terminal
Railway Company, The Chicago Short Line Railway Company, and Cuyahoga
Valley Railway (incorporated by reference to Exhibit 10.8 to the
Registrants Registration Statement on Form S-1 (Reg. No. 333-107524),
as amended).10.9
    
    First Amendment to the Asset Purchase Agreement, dated as of April 11,
2002, by and among WLR Acquisition Corp., LTV Steel Company, Inc., The
River Terminal Railway Company, The Chicago Short Line Railway Company,
and Cuyahoga Valley Railway (incorporated by reference to Exhibit 10.9
to the Registrants Registration Statement on Form S-1 (Reg. No.
333-107524), as amended).10.10
    
    Second Amendment to the Asset Purchase Agreement, dated as of June 4,
2002, by and among WLR Acquisition Corp., LTV Steel Company, Inc., The
River Terminal Railway Company, The Chicago Short Line Railway Company,
and Cuyahoga Valley Railway (incorporated by reference to Exhibit 10.10
to the Registrants Registration Statement on Form S-1 (Reg. No.
333-107524), as amended).10.11
    
    Third Amendment to the Asset Purchase Agreement, dated as of July 8,
2002, by and among WLR Acquisition Corp., LTV Steel Company, Inc., The
River Terminal Railway Company, The Chicago Short Line Railway Company,
and Cuyahoga Valley Railway (incorporated by reference to Exhibit 10.11
to the Registrants Registration Statement on Form S-1 (Reg. No.
333-107524), as amended).10.12
    
    Asset Purchase Agreement, dated as of March 12, 2003, by and among ISG,
ISG Acquisition, Inc., Bethlehem, and the other sellers named therein
(incorporated by reference to Exhibit 10.12 to the Registrants
Registration Statement on Form S-1 (Reg. No. 333-107524), as amended).10.13
    
    Amendment No. 1 to Asset Purchase Agreement, dated as of April 22,
2003, by and among ISG, ISG Acquisition, Inc., Bethlehem, and the other
sellers named therein (incorporated by reference to Exhibit 10.13 to
the Registrants Registration Statement on Form S-1 (Reg. No.
333-107524), as amended).10.14
    
    Amendment No. 2 to Asset Purchase Agreement, dated as of May 6, 2003,
by and among ISG, ISG Acquisition, Inc., Bethlehem, and the other
sellers named therein (incorporated by reference to Exhibit 10.14 to
the Registrants Registration Statement on Form S-1 (Reg. No.
333-107524), as amended).10.15
    
    Form of Indemnification Agreement with directors of ISG (incorporated
by reference to Exhibit 10.17 to the Registrants Registration
Statement on Form S-1 (Reg. No. 333-107524), as amended).10.16
    
    Form of Indemnification Agreement with officers of ISG (incorporated by
reference to Exhibit 10.18 to the Registrants Registration Statement
on Form S-1 (Reg. No. 333-107524), as amended).10.17
    
    Form of Indemnification Agreement with a person who is both an officer
and director of ISG (incorporated by reference to Exhibit 10.19 to the
Registrants Registration Statement on Form S-1 (Reg. No. 333-107524),
as amended).21.1
    
    List of Subsidiaries.*23.1
    
    Independent Auditors Consent.*24.1
    
    Power of Attorney.*31.1
    
    Certification by the Chief Executive Officer pursuant to Rules
13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934.
 6




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ExhibitNumber
    
    Description of Document31.2
    
    Certification by the Chief Financial Officer pursuant to Rules
13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934.32.1
    
    Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002.*
 * Filed with ISGs original Annual Report on March 11, 2004. (b) Report on Form 8-K ISG filed the following Current Reports on Form 8-K during the fourth quarter of 2003: None 7




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SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant duly
caused this amended report to be signed on its behalf by the undersigned, thereunto duly
authorized. INTERNATIONAL STEEL GROUP INC.By:
    /s/ Leonard M. AnthonyName:
    Leonard M. AnthonyTitle:
    Senior Vice President and Chief
Financial OfficerDate: March 10, 2005 8