Tenaris provides information pursuant to Luxembourg Transparency Law

LUXEMBOURG, June 18, 2025 (GLOBE NEWSWIRE) -- Tenaris S.A. (NYSE and Mexico: TS and EXM Italy: TEN) (“Tenaris”, or the “Company”) announced today that the Company’s controlling shareholder, San Faustin S.A. (“San Faustin”), has notified the Company that, as a result of Tenaris’s open market repurchases of own shares under its share buyback program publicly announced on May 27, 2025, San Faustin has passively crossed a voting rights threshold triggering a notice requirement under the Luxembourg Transparency Law.

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