SOURCE: Tenaris S.A.

Tenaris S.A.

August 31, 2009 16:30 ET

Tenaris Files Half-Year Report

LUXEMBOURG--(Marketwire - August 31, 2009) - Tenaris S.A. (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN) announces that it has filed its half-year report for the six-month period ended June 30, 2009 with the Luxembourg Stock Exchange. The half-year report can be downloaded from the Luxembourg Stock Exchange's website at www.bourse.lu 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 half-year report, free of charge, at 1-888-300-5432 (toll free from the United States) or 52-55-5282-9929 (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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