Tenaris Confirms Dividend Payment and Election of Directors

LUXEMBOURG--(Marketwire - June 4, 2008) - Tenaris S.A. (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN), in its annual general shareholders meeting today, approved the consolidated financial statements and the report and accounts of the Company for the year ended December 31, 2007, as well as the payment of an annual dividend of US$0.38 per share, (US$0.76 per ADS), or approximately US$450 million. The amount approved includes the interim dividend previously paid on November 22, 2007, in the amount of US$0.13 per share (US$0.26 per ADS). Tenaris will pay the balance of the annual dividend amounting to US$0.25 per share (US$0.50 per ADS), or approximately US$295 million, on June 26, 2008 with a record date of June 25, 2008 and an ex-dividend date of June 23, 2008.

The general shareholders' meeting approved the re-election of the current members of the board of directors, with the exception of Bruno Marchettini who did not stand for re-election, and the election of Alberto Valsecchi, our former Chief Operating Officer, to serve as members of the board of directors until the next annual shareholders' meeting, which will be held in June 2009.

The board of directors subsequently confirmed Amadeo Vázquez y Vázquez, Jaime Serra Puche and Roberto Monti as members of the Company's audit committee, with Mr. Vázquez y Vázquez to continue as chairman. All three members of the audit committee are independent directors.

The company re-appointed PricewaterhouseCoopers as its independent auditors for the 2008 fiscal year.

Tenaris is a leading global supplier of steel tubes and related services for the world's energy industry and certain other industrial applications.

Contact Information: Contact: Nigel Worsnop Tenaris 1-888 300 5432 www.tenaris.com