Tenaris Global Services UK LTD.
Aberdeen
Great Britain

TENARIS
Buenos Aires, Villa Luzuriaga
Argentina

TENARISDALMINE
Dalmine
Italy

TENARIS
Abu Dhabi
United Arab Emirates

TENARIS GLOBAL SERVICES UK LTD.
Aberdeen
Great Britain

TENARIS GLOBAL SERVICES CANADA INC
Calgary
Canada

TENARIS, SIDERCA S.A.I.C.
Buenos Aires
Argentina

TENARIS
Dubai
United Arab Emirates

TENARIS
Dalmine
Spain

Tenaris
Calgary
Canada

TENARIS AUSTRALIA
West Perth
Australia

TENARIS DALMINE S.P.A
Dalmine
Italy

TENARIS SILCOTUB
Zalau, Jud Salaj
Romania

TENARIS (MANAGED BY BIGI GREGOLI SRL)
Milano
Italy

TENARIS GLOBAL SERVICES CANADA
Calgary
Canada