SOURCE: Tenaris S.A.

June 30, 2008 08:00 ET

Tenaris Files 2007 Form 20-F

LUXEMBOURG--(Marketwire - June 30, 2008) - Tenaris S.A. (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN) ("Tenaris") announces that it has filed its annual report on Form 20-F for the year ended December 31, 2007 with the U.S. Securities and Exchange Commission (SEC). The annual report can be downloaded from the SEC website at www.sec.gov and from Tenaris's website at www.tenaris.com/investors. Holders of Tenaris's shares and ADSs, and any other interested parties, may request a hard copy of the annual report, free of charge, at 1-888-300-5432 (toll free from the United States) or 52-55-5282-9969 (from outside the United States).

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

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