Tenaris to Commence a USD 600 million Second Tranche of its USD 1.2 Billion Share Buyback Program

LUXEMBOURG, Nov. 02, 2025 (GLOBE NEWSWIRE) -- Tenaris S.A. (NYSE and Mexico: TS and EXM Italy: TEN) (“Tenaris”) announced today that pursuant to its USD 1.2 billion Share Buyback Program (the “Program”) announced on May 27, 2025, it has entered into a non-discretionary buyback agreement with a primary financial institution (the “Bank”) for the execution of its second tranche, covering up to the remainder USD 600 million of the Program (excluding customary transaction fees). This second tranche shall start on November 3, 2025, and end no later than April 30, 2026.

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