Tenaris S.A. — M&A Activity 2003

Feb 25, 2003

6-K 1 e14314_6k.htm FORM 6-K Form 6-K *********** MARKER PAGE="sheet: 1; page: 1"

FORM 6 - K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

As of February 24, 2003

TENARIS, S.A. (Translation of Registrant’s name into English)

TENARIS, S.A. 23 Avenue Monterey 2086 Luxembourg (Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or 40-F.

Form 20-F |X| Form 40-F |_|

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” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- .

*********** MARKER PAGE="sheet: 1; page: 1"

The attached material is being furnished to the Securities and Exchange Commission pursuant to Rule 13a-16 and Form 6 -K under the Securities Exchange Act of 1934, as amended. This report contains Tenaris’s press release announcing its plan for the acquisition of remaining minority interests in Siderca.

SIGNATURE

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: February 24, 2003

Tenaris, S.A.

By: /s/ Cecilia Bilesio Cecilia Bilesio Corporate Secretary