 LUXEMBOURG, Aug. 17, 2021 GLOBE NEWSWIRE -- Tenaris S.A. NYSE and Mexico: TS and MTA Italy: TEN has been informed that the first-instance judge in charge of the Notebooks Case acquitted Tenariss Chairman and CEO Paolo Rocca of all charges brought against him in the case. In its decision, the first-instance judge stated that Mr. Roccas involvement in the Notebooks Cases judicial proceedings does not affect his good name and honor in any way. The first-instance judges decision concerning Mr. Rocca was not appealed by either the prosecutor or the government unit prosecuting economic crimes UIF. 