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 July 12, 2004



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


                                  TENARIS, S.A.
                                13, rue Beaumont
                                L-1219 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-___.





Tenaris Clarifies Decision of European Court

    LUXEMBOURG--(BUSINESS WIRE)--July 8, 2004--Tenaris S.A. (NYSE:TS)
(Buenos Aires:TS) (BMV:TS) (MTA Italy:TEN), confirms that the Court of
First Instance of the European Communities has upheld the decision
made by the European Commission on December 8, 1999 to fine eight
international steel pipe manufacturers, including its Italian
subsidiary Dalmine S.p.A., for violation of European competition laws.
According to the Court's decision, Dalmine is required to pay a fine
of Euro 10.1 million. Since the infringements for which the fine was
imposed took place prior to the acquisition of Dalmine by Tenaris in
1996, Dalmine's former owner, who may instruct Dalmine to appeal, is
required and has acknowledged its responsibility to pay 84.1% of the
fine. The remaining 15.9% of the fine will be paid out of the
provision that Dalmine established in 1999 for such proceeding.
    Tenaris is a leading global manufacturer of seamless steel pipe
products and provider of pipe handling, stocking and distribution
services to the oil and gas, energy and mechanical industries and a
leading regional supplier of welded steel pipes for gas pipelines in
South America. Domiciled in Luxembourg, it has pipe manufacturing
facilities in Argentina, Brazil, Canada, Italy, Japan, Mexico and
Venezuela and a network of customer service centers present in over 20
countries worldwide.

    CONTACT: Tenaris
             Nigel Worsnop, 888-300-5432
             www.tenaris.com






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
the decision of European Court.


                                    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: July 12, 2004



                                                             Tenaris, S.A.




By: /s/ Cecilia Bilesio
- -----------------------
Cecilia Bilesio
Corporate Secretary