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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549
   FORM 10-Q/A þ AMENDMENT NO. 1 TO QUARTERLY REPORT FILED PURSUANT TO
SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2004 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from __________ to ______________ 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)4020 Kinross Lakes Parkway, Richfield, Ohio(Address of Registrants Principal Executive Offices)
    
    44286-9000(Zip Code)
 (330) 659-9100(Registrants telephone number including area code) Indicate by check mark whether 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 requirement for the past 90 days. Yes þ No  ̈ Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act). Yes  ̈ No þ Number of shares of Common Stock, par value $0.01 per share, outstanding as of June 30, 2004: 98,017,229




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Amendment No. 1 to the Quarterly Report
For the Three Months Ended June 30, 2004 EXPLANATORY NOTE International Steel Group, Inc. (ISG) is filing this Amendment No. 1 to its Form 10-Q for the
quarter ended June 30, 2004 (this Amendment) to amend its disclosure in Part 1, Item 4 of its
quarterly report on Form 10-Q filed on July 30, 2004 (the Quarterly 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 Quarterly 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 1, Item 4 of the Quarterly Report. It does not affect any other Items in the Quarterly
Report, and those unaffected Items are not included in this Amendment. This Amendment continues to speak as of the date of the original Quarterly Report and ISG has not
updated the disclosure contained herein to reflect events that have occurred since the filing of
the original Quarterly Report. Accordingly, this Form 10-Q/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 Quarterly Report, including any amendments to those filings.




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PART I
ITEM 4. 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, as of the end of the
period covered by this report (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, 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. As required by procedures established by the SEC and as
reported in our Quarterly Report on Form 10-Q for the quarter ended March 31, 2004, 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. Consequently, as discussed below, our disclosure controls and procedures
have included extraordinary steps and measures to provide reasonable assurance that,
notwithstanding these material weaknesses, the information required to be disclosed in our Exchange
Act filings was recorded, processed, summarized and reported within the time period specified in
SEC rules and forms, and was 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. KPMG issued to our Board of Directors and Audit Committee a management letter in June 2004
in connection with their audit of our 2003 consolidated financial statements. That letter, the
substance of which had been previously discussed by KPMG with our management and Audit Committee,
identified certain matters involving ISGs internal controls over financial reporting and their
operation that KPMG considered to be reportable conditions under standards established by the
American Institute of Certified Public Accountants. Additionally, KPMG indicated that it believed
that in the aggregate these reportable conditions represent material weaknesses in internal control
over financial reporting in the areas of review, communication, documentation, consistency and
information systems. In preparing our Exchange Act filings, because of these material weaknesses in our internal
control over financial reporting, we implemented extraordinary processes and procedures to provide
reasonable assurance that (1) 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, and (2) the reportable conditions and material weaknesses in
internal control over financial reporting that KPMG reported to our Audit Committee in June 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 has devoted significant time and attention, in support of our efforts to eliminate the
deficiencies in our internal controls and to mitigate the effects of those weaknesses on our
disclosure controls. During 2004, we have hired additional experienced accounting personnel and
placed employees with significant accounting expertise in new supervisory assignments. 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, entries, account reconciliations and the required disclosures that were included in ISGs
Exchange Act filings. The specific reportable conditions identified by KPMG, and some of the specific steps that we
took to mitigate the effect of each of these reportable conditions on our disclosure controls,
included the following: 3




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
    Policies and Procedures. KPMG noted that there was an absence of
consistently applied policies and procedures in our financial
reporting and that there was a lack of experience and training on
behalf of some of our personnel performing the financial
reporting functions. To address this issue, in preparing our
external financial statements, our disclosure controls have
included additional review by the more experienced members of our
financial reporting team to provide reasonable assurance that our
accounting policies and procedures are consistently applied. We
have also been developing an accounting policies and procedures
manual.  
    Workload of Accounting Staff. KPMG noted that our rapid growth
placed a strain on our accounting staff and that, if there was
future growth and increased activity by us, additional qualified
personnel would be needed. We hired and retained additional
accounting personnel and reassigned certain personnel during 2004
to address this issue, and also implemented more internal review
procedures than otherwise would be required.  
    Segregation of Duties. KPMG noted that there were certain
situations in which the duties of members of our accounting staff
were not properly segregated, such as instances where the
individual responsible for maintaining accounts receivable records
was also responsible for recording and processing cash receipts to
the subsidiary ledger. To address this issue, our management and
employees performed additional reviews of account balances that
could potentially affect our Exchange Act filings in any material
respect.  
    Closing and Consolidation Process. KPMG noted that we did not
have a documented closing process, including the assignment of
specific responsibilities to individuals and establishment of
deadlines, and that our consolidation procedures generally
involved manual, non-automated processes. To address this issue,
our management developed a monthly financial closing process and
calendar and began to develop a new financial reporting software
system. 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. Finally,
our management spent a significant amount of time overseeing the
process of preparing our Exchange Act filings and ensuring that
applicable deadlines for public filing were met. Our annual
report on Form 10-K for the year ended December 31, 2003 and all
of our quarterly reports on Form 10-Q during 2004 to date were
filed in a timely and, we believe, proper manner.  
    Interdepartmental Communication. KPMG noted that there were
instances of miscommunication, delays and lack of correspondence
between the corporate headquarters and plant accounting
departments, and between and within certain departments at our
corporate headquarters. To address this issue, we implemented a
system with periodic meetings of department heads. In addition,
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 through frequent correspondence and scheduled
meetings.  
    Accounts Payable Cutoff. KPMG noted that we had not established
sufficient period-end procedures to effectively accrue for
accounts payable. To address this issue, in the preparation of
our Exchange Act filings, our management and employees spent
additional time providing reasonable assurance that goods and
services received by ISG and its subsidiaries, particularly raw
materials, had been recorded in the proper accounting period.  
    Journal Entry Preparation, Review and Approval. KPMG noted that
certain journal entries were not reviewed and approved by someone
other than the preparer prior to entry into the general ledger
system, and that records of certain journal entries along with
appropriate supporting documentation did not appear to be
maintained. To address this issue, our management issued
instructions stating that supervisors of employees preparing
journal entries are responsible for reviewing all significant
entries for completeness, accuracy and documentation. In
addition, in the preparation of our Exchange Act filings, our
management and employees spent additional time reviewing
significant account balances and transactions for reasonableness.  
    Period-end Accruals. KPMG noted that we had not established
sufficient period-end procedures over certain accruals, such as
workers compensation and health insurance, to ensure that
liabilities for these items were consistently accrued across all
locations. To address this issue, in the preparation of our
Exchange Act filings, our management and employees spent
additional time reviewing such accruals at the consolidated level
for reasonableness and providing reasonable assurance that
appropriate adjustments were made. 4




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
    Inventory at Outside Processors. KPMG noted that we did not have
a consistent method, or efficient and effective process, to track
quantity and status of inventory at outside processors. To
address this issue, our system was used for all significant
outside processing inventory during 2004, providing reasonable
assurance that the data relating to the quantity and status of
inventory at outside processors that was used in the preparation
of our Exchange Act filings was reasonable.  
    Cost Accounting. KPMG noted that we did not have an adequate
standard cost system or a consistent policy for the determination
of actual costs. To address this issue, our management reviewed
cost accounting at all locations and issued instructions to our
operating locations that they should consistently use in 2004 the
methods used to determine the audited costs at each operating
facility for inventory at December 31, 2003.  
    Raw Material Inventory. KPMG noted that we did not have a
standardized approach of accounting for raw material inventories
at our various facilities. To address this issue, our management
reviewed in detail the raw material and other costs used in its
application of LIFO accounting at each quarter end. As with other
inventory costs, operating locations were instructed to
consistently use in 2004 the methods and processes that were
utilized in the determination of the audited raw material costs at
December 31, 2003.  
    Environmental Liabilities. KPMG suggested that the accounting
departments oversight over the development of the environmental
reserves should be enhanced. To address this issue, in the
preparation of our Exchange Act filings, our management and
employees spent additional time reviewing the environmental
reserves included in our Exchange Act filings. Our Controller now
meets with ISG environmental personnel before the close of each
quarter to discuss potential new probable environmental issues and
changes in estimates of future probable spending. In addition, we
transferred environmental liabilities to the corporate general
ledger to facilitate the ability of our corporate accounting staff
to track spending and monitor other changes to the consolidated
recorded balances.  
    Litigation and Insurance Reserves. KPMG suggested that the
accounting departments oversight over the maintenance of the
litigation and insurance reserves should be enhanced, and that we
should consider relying less heavily on our outsourced risk
management function. To address this issue, in the preparation
of our Exchange Act filings, our management and employees spent
additional time reviewing our litigation and insurance reserves
included in the our Exchange Act filings. In addition, in the
first quarter of 2004, we increased the frequency of our meetings
with outside service providers providing legal and risk management
functions and increased our oversight of these providers. We also
hired additional personnel, including an acting General Counsel
from an outside law firm knowledgeable about ISG, and shifted more
of the risk management work to our employees. We believe that these extraordinary processes and procedures, which are encompassed in our
current disclosure controls, mitigated the potential effect of the identified material weaknesses
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 these rigorous disclosure controls, we believe, and our chief
executive officer and chief financial officer have certified to their knowledge that, this
quarterly report on 10-Q 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 report. With respect to our internal control over financial reporting, these reportable conditions
have been discussed in detail among management, our Audit Committee and KPMG. Management has
adopted and has been implementing a plan to correct these conditions and believes that the
overriding issue is the lack of documented accounting policies and procedures along with inadequate
accounting information technology and certain other accounting information processes. During the second quarter 2004, we continued to implement changes to improve our internal
controls over financial reporting. These changes include, among other matters, substantially
completing our review of the accounting information technology systems and the selection of a new
general ledger/consolidation system; engaging a consultant with substantial steel industry
experience to assist in developing and documenting our accounting policies and procedures;
implementing analytical review procedures, calendar schedules and checklists for the preparation of
consolidated financial statements and other consolidated financial information; initiating in-depth
reviews to determine the adequacy of the accounting organization; and hiring a new Director of
Internal 5




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Audit. Management intends to continue to review, revise and improve our internal controls over
financial reporting until the material weaknesses are eliminated. Section 404 of the Sarbanes-Oxley Act of 2002 requires that management document and test the
internal controls over financial reporting and to assert in our Annual Report on Form 10-K for the
year-ended December 31, 2004, whether the internal controls over financial reporting at December
31, 2004 are effective. Any material weakness in internal controls over financial reporting
existing at that date will preclude managements making a positive assertion. At this time, there
is significant uncertainty regarding whether management will be able to implement the required
changes to correct these material weaknesses in internal controls over financial reporting and
sufficiently document and test the revised internal controls procedures in order to make a positive
assertion as to the effectiveness of internal controls over financial reporting by December 31,
2004. Except as noted above and the acquisition of the new operating facilities of Weirton Steel
Corporation and Georgetown Steel Corporation, there were no other changes in our internal controls
over financial reporting that occurred during the second quarter 2004 that have materially affected
or are reasonably likely to materially affect our internal controls over financial reporting. PART II ITEM 6. EXHIBITS ExhibitNumber
    
    Description of Document31.1
    
    Certification by the Chief Executive Officer pursuant to Rules
13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934.31.2
    
    Certification by the Chief Financial Officer pursuant to Rules
13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934.
 6




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SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly
caused this amended report to be signed on its behalf by the undersigned, thereunto duly
authorized. INTERNATIONAL STEEL GROUP INC.Date: March 10, 2005
    
    /s/ Leonard M. AnthonyBy:
Title:
    
    Leonard M. Anthony
Senior Vice President
and Chief Financial Officer
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Exhibit Index ExhibitNumber
    
    Description of Document31.1
    
    Certification by the Chief Executive Officer pursuant to Rules
13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934.31.2
    
    Certification by the Chief Financial Officer pursuant to Rules
13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934.
 8