LUXEMBOURG -- (MARKET WIRE) -- 01/17/12 -- Tenaris S.A. (NYSE: TS) (BAE: TS) (BVM: TS) (MILAN: TEN) announced today that its Brazilian subsidiary, Confab Industrial S.A. (Confab), completed its previously announced acquisition of 25 million ordinary shares of Usinas Siderúrgicas de Minas Gerais S.A

LUXEMBOURG -- (MARKET WIRE) -- 11/27/11 -- Tenaris S.A. (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN) announced today that its Brazilian subsidiary, Confab Industrial S.A. (Confab), has agreed to acquire 25 million ordinary shares of Usinas Siderúrgicas de Minas Gerais S.A .

The financial information contained in this press release is based on unaudited consolidated condensed interim financial statements presented in U.S. dollars (US$) and prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standard Board and adopted by the European Union, or IFRS.

LUXEMBOURG -- (MARKET WIRE) -- 11/01/11 -- Tenaris S.A. (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN) announced today the withdrawal of its request for approval of a public delisting tender offer to acquire all of the ordinary and preferred shares held by the public in its controlled Brazilian

LUXEMBOURG -- (MARKET WIRE) -- 08/29/11 -- Tenaris S.A. (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN) announced today that it filed a request with CVM ( Brazil's securities regulator) and the Sao Paulo stock exchange seeking their approval to a public delisting tender offer to acquire all of the

LUXEMBOURG -- (MARKET WIRE) -- 08/24/11 -- Tenaris S.A (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN) and its wholly-owned subsidiary Talta - Trading e Marketing Sociedad Unipessoal Lda (Talta), announced today that, given the absence of progress in the discussions on compensation since Venezuela's

The Financial Information Contained in This Press Release Is Based on Unaudited Consolidated Condensed Interim Financial Statements Presented in U.S. Dollars (US$) and Prepared in Accordance With International Financial Reporting Standards as Issued by the International Accounting Standard Board and Adopted by the European Union, or IFRS

LUXEMBOURG -- (MARKET WIRE) -- 06/30/11 -- 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, 2010 with the U.S. Securities and Exchange Commission (SEC).

LUXEMBOURG -- (MARKET WIRE) -- 06/21/11 -- Tenaris S.A. (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN) announced today that, within the framework of the Venezuelan National Assembly's law declaring all of Matesi's assets to be of public and social interest and ordering the Executive Branch to take