LUXEMBOURG -- (MARKET WIRE) -- 02/15/11 -- Tenaris S.A. (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN) (the "Company") announces that it has been informed by its controlling shareholder that there has been a reorganization in the chain of ownership of the Company pursuant to which the Company's

The Financial and Operational 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, Aug 06, 2010 (MARKETWIRE via COMTEX News Network) -- 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, 2010 with the Luxembourg Stock Exchange.

The Financial and Operational 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, Jun 30, 2010 (MARKETWIRE via COMTEX News Network) -- 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, 2009 with the U.S. Securities and Exchange Commission (SEC).

LUXEMBOURG, Jun 02, 2010 (MARKETWIRE via COMTEX News Network) -- Tenaris S.A. (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN) announced that its annual general shareholders' meeting approved today all resolutions on its agenda. Among other resolutions adopted at the meeting, the shareholders approved

The Financial and Operational Information Contained in This Press Release Is Based on Unaudited Consolidated Condensed Interim Financial Statements Prepared in Accordance With International Financial Reporting Standards (IFRS) and Presented in U.S. Dollars

LUXEMBOURG, Apr 23, 2010 (MARKETWIRE via COMTEX News Network) -- Tenaris S.A. (NYSE: TS) (BAE: TS) (MXSE: TS) (MILAN: TEN) announces that it has filed its annual report for the year ended December 31, 2009 with the Luxembourg Stock Exchange. The annual report can be downloaded from the Luxembourg

The Financial and Operational Information Contained in This Press Release Is Based on Audited Consolidated Financial Statements Prepared in Accordance With International Financial Reporting Standards (IFRS) and Presented in U.S. Dollars