Tenaris Comments on Recent Developments in Vene...

LUXEMBOURG -- (MARKET WIRE) -- 05/22/09 -- Tenaris S.A. (NYSE: TS)
(BAE: TS) (MXSE: TS) (MILAN: TEN) ("Tenaris") announced today that
Venezuela's President Hugo Chavez has announced the decision to
nationalize its majority-owned subsidiaries Tavsa, Tubos de Acero de
Venezuela S.A. and Matesi, Materiales Siderurgicos S.A. and its
minority interest in Complejo Siderurgico de Guayana, C.A. No details
have been provided regarding the expropriation process.

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

Contact:
Giovanni Sardagna
Tenaris
1-888-300-5432
www.tenaris.com


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