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 September 2, 2003 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-____. 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 announcement regarding the election of Paolo Rocca as Chairman of its board of directors. Tenaris Elects Paolo Rocca as Chairman LUXEMBOURG--(BUSINESS WIRE)--Sept. 2, 2003--Tenaris S.A. (NYSE:TS) (Buenos Aires:TS) (BMV:TS) (MTA Italy:TEN), in a meeting of its board of directors, elected Paolo Rocca to fill the position of chairman of its board of directors, which had been left vacant following the passing of Roberto Rocca on June 10, 2003. Paolo Rocca, in addition to acting as chairman of the board, will continue to act as chief executive officer of Tenaris. The board of directors also approved the appointment of Lucio Bastianini, who was born in 1925 and is vice chairman of San Faustin N.V., as a member of the board. 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. Organized 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 Gerardo Varela, 888-300-5432 www.tenaris.com 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: September 2, 2003 Tenaris, S.A. By: /s/ Cecilia Bilesio ----------------------- Cecilia Bilesio Corporate Secretary