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Mittal Steel Co N.V. – ‘20-F’ for 12/31/05 – EX-12.1

On:  Monday, 3/20/06, at 3:27pm ET   ·   For:  12/31/05   ·   Accession #:  1047469-6-3724   ·   File #:  1-14666

Previous ‘20-F’:  ‘20-F’ on 3/31/05 for 12/31/04   ·   Next:  ‘20-F’ on 4/17/07 for 12/31/06   ·   Latest:  ‘20-F/A’ on 7/3/07 for 12/31/06

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  As Of                Filer                Filing    For·On·As Docs:Size              Issuer               Agent

 3/20/06  Mittal Steel Co N.V.              20-F       12/31/05    7:1.9M                                   Merrill Corp/New/FA

Annual Report of a Foreign Private Issuer   —   Form 20-F
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 20-F        Annual Report of a Foreign Private Issuer           HTML   1.88M 
 2: EX-8.1      Opinion re: Tax Matters                             HTML     10K 
 3: EX-12.1     Statement re: Computation of Ratios                 HTML     17K 
 4: EX-13.1     Annual or Quarterly Report to Security Holders      HTML     10K 
 5: EX-14.1     Code of Ethics                                      HTML      8K 
 6: EX-14.2     Code of Ethics                                      HTML      8K 
 7: EX-14.3     Code of Ethics                                      HTML     10K 


EX-12.1   —   Statement re: Computation of Ratios
Exhibit Table of Contents

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11st Page   -   Filing Submission
"CERTIFICATIONS OF MITTAL STEEL COMPANY N.V.'S CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) UNDER THE EXCHANGE ACT
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Exhibit 12.1


CERTIFICATIONS OF MITTAL STEEL COMPANY N.V.'S
CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
PURSUANT TO RULE 13a-14(a) UNDER THE EXCHANGE ACT

I, Mr. Lakshmi N. Mittal, certify that:

1.
I have reviewed this annual report on Form 20-F of Mittal Steel Company N.V.;

2.
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a 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 by this report;

3.
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report;

4.
The Company's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the Company and have:

(a)
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)
Evaluated the effectiveness of the Company's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(c)
Disclosed in this report any change in the Company's internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting; and

5.
The Company's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Company's auditors and the audit committee of the Company's board of directors (or persons performing the equivalent functions):

(a)
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Company's ability to record, process, summarize and report financial information; and

(b)
Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company's internal control over financial reporting.

Date: March 17, 2006

/s/  LAKSHMI N. MITTAL      
Mr. Lakshmi N. Mittal
Chairman of the Board of Directors and Chief Executive Officer of Mittal Steel Company N.V.
   


I,
Mr. Aditya Mittal, certify that:

1.
I have reviewed this annual report on Form 20-F of Mittal Steel Company N.V.;

2.
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a 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 by this report;

3.
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report;

4.
The Company's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the Company and have:

(a)
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)
Evaluated the effectiveness of the Company's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(c)
Disclosed in this report any change in the Company's internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting; and

5.
The Company's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Company's auditors and the audit committee of the Company's board of directors (or persons performing the equivalent functions):

(a)
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Company's ability to record, process, summarize and report financial information; and

(b)
Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company's internal control over financial reporting.

Date: March 17, 2006

/s/  ADITYA MITTAL      
Mr. Aditya Mittal
President and Chief Financial Officer of Mittal Steel Company N.V.
   



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CERTIFICATIONS OF MITTAL STEEL COMPANY N.V.'S CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) UNDER THE EXCHANGE ACT

Dates Referenced Herein   and   Documents Incorporated by Reference

This ‘20-F’ Filing    Date    Other Filings
Filed on:3/20/06
3/17/066-K
For Period End:12/31/05
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Filing Submission 0001047469-06-003724   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

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