TENARIS S.A. USD1 revenue for the last year amounted to 13.75 B EUR, the most of which — 13.12 B EUR — came from its highest performing source at the moment, Tubes, the year earlier bringing 10.59 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought TENARIS S.A. USD1 5.36 B EUR, and the year before that — 4.70 B EUR.