Brief: Tenaris Completes $600 Million First Tranche Of Its Share Buyback Program
Sept 30 (Reuters) - Tenaris SA TENR.MI: TENARIS COMPLETES USD600 MILLION FIRST TRANCHE OF ITS SHARE BUYBACK PROGRAM Source text: ID:nGNX4yb1tJ Further company coverage: TENR.MI ((Reuters.Briefs@thomsonreuters.com;))