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

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. Additionally, this press release includes non-IFRS alternative performance measures i.e., EBITDA and Net cash / debt. See exhibit I for more details on these alternative performance measures.

LUXEMBOURG -- (Marketwired) -- 08/31/17 -- Tenaris S.A. ( NYSE : TS) (BAE: TS) (BMV: TS) (MILAN: TEN) announced today that all its facilities in Houston , Freeport and Bay City are gradually resuming operations from today following the passage of Hurricane Harvey and subsequent extensive flooding

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; Additionally, this press release includes non-IFRS alternative performance measures i.e., EBITDA and Net cash / debt; See exhibit I for more details on these alternative performance measures

LUXEMBOURG -- (Marketwired) -- 05/03/17 -- Tenaris S.A. ( NYSE : TS) (BAE: TS) (BMV: TS) (MILAN: TEN) announced that its annual general meeting of shareholders approved today all resolutions on the agenda. Among other resolutions adopted at the meeting, the shareholders approved the consolidated

LUXEMBOURG -- (Marketwired) -- 05/01/17 -- 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, 2016 with the U.S. Securities and Exchange Commission (SEC).

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; Additionally, this press release includes non-IFRS alternative performance measures i.e., EBITDA, Net cash / debt and Free Cash Flow; See exhibit I for more details on these alternative performance measures

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; Additionally, this press release includes non-IFRS alternative performance measures i.e., EBITDA, Net cash / debt and Free Cash Flow; See exhibit I for more details on these alternative performance measures