UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Dated December 26, 2006
Commission File Number: 001-14666
MITTAL STEEL COMPANY N.V.
(Translation of registrant’s name into English)
15th Floor, Hofplein 20
3032 AC Rotterdam
The Netherlands
(Address of principal executive offices)
Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.
Form 20-F x Form 40-F ¨
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):
Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.
Yes ¨ No x
If “Yes” marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-
On December 26, 2006, Mittal Steel Company N.V. issued the press release attached hereto as Exhibit 99.1.
Exhibit List
| Exhibit No. | Description | |
| Exhibit 99.1 | Press release dated December 26, 2006, announcing that on December 22, 2006, ThyssenKrupp AG initiated summary legal proceedings against Mittal Steel in the District Court in Rotterdam |
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
Date: December 26, 2006
| By: | /s/ Henk Scheffer | |
| Name: | Henk Scheffer | |
| Title: | Company Secretary |
Exhibit Index
| Exhibit No. | Description | |
| Exhibit 99.1 | Press release dated December 26, 2006, announcing that on December 22, 2006, ThyssenKrupp AG initiated summary legal proceedings against Mittal Steel in the District Court in Rotterdam |