The Financial and Operational Information Contained in This Press Release Is Based on Unaudited Consolidated Condensed Interim Financial Statements Presented in U.S. Dollars 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 -- ( Marketwired ) -- 03/31/15 -- Tenaris S.A. (NYSE: TS) (BAE: TS) (BMV: TS) (MILAN: TEN) announces that it has filed today its annual report for the year ended December 31, 2014 , with the Luxembourg Stock Exchange and has submitted such report to the other securities regulators of the

The Financial and Operational Information Contained in This Press Release Is Based on Audited Consolidated Financial Statements Presented in U.S. Dollars 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

The Financial Information Contained in This Press Release Is Based on Unaudited Consolidated Condensed Interim Financial Statements Presented in U.S. Dollars ($) 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

The Financial and Operational Information Contained in This Press Release Is Based on Unaudited Consolidated Financial Statements Presented in U.S. Dollars 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 -- (Marketwired) -- 05/23/14 -- Tenaris S.A. (NYSE: TS) (BAE: TS) (BMV: TS) (MILAN: TEN) announced today the successful completion of the renegotiation of its joint venture agreement with JFE Steel Corporation for the governance and operation of NKKTUBES .

LUXEMBOURG -- (Marketwired) -- 05/07/14 -- Tenaris S.A. (NYSE: TS) (BAE: TS) (BMV: TS) (MILAN: TEN) announced that its annual general meeting of shareholders approved today all resolutions on its agenda. Among other resolutions adopted at the meeting, the shareholders approved the consolidated

The Financial and Operational Information Contained in This Press Release Is Based on Unaudited Consolidated Financial Statements Presented in U.S. Dollars 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 --(Marketwired - April 30, 2014 ) - Tenaris S.A. (NYSE: TS) (BAE: TS) (BMV: TS) (MILAN: TEN) ("Tenaris") announces that it has filed its annual report on Form 20-F for the year ended December 31, 2013 with the U.S. Securities and Exchange Commission (SEC).