Alcan Jamaica

Aluar Aluminio Argentina

Anglo American

Bechtel / Minera Candelaria

BHP Billiton

Centromin Peru

Codelco – Chuquicamata, RT, El Teniente etc.

Companhia Vale do Rio Doce – CVRD

Grupo Mexico

Industrial Minera de Mexico

International Nickel Indonesia

Oro de Sotula, S.A.

Rio Tinto

Southern Copper Corp.