Afrasia Mineral Fields Inc. African Eagle Resources plc Alderon Resource Corp. Ansonia Copper & Brass Inc. Antofagasta plc [ANFGY.PK] Anvil Mining Argosy Minerals Inc. ASARCO LLC Atlantic Copper, S.A. Augusta Resource Corporation Aurubis AG
Bell Copper Corporation Boliden AB
Cambridge-Lee Industries LLC Campbell Resources Inc. [CBLRF.PK] Capstone Mining Corp. Central African Mining & Exploration Company plc Chino Mines Company Colonial Metals Co. Copper King Mining Corporation [CPRK.PK] Corporación Nacional del Cobre de Chile
Dia Bras Exploration Inc. Doublestar Resources Ltd. Dowa Holdings Co., Ltd.
Encore Wire Corporation [WIRE] Eureka Resources, Inc.
First Quantum Minerals Ltd. Freeport-McMoRan Copper & Gold Inc. [FCX]
Gladstone Pacific Nickel Limited Grupo México S.A.B. de C.V. [GMBXF.PK]
Hindalco Industries Ltd. HudBay Minerals Inc. Hunter Dickinson Inc.
I. Schumann & Co. Imperial Metals Corporation Inca Pacific Resources Inc. Industrias Nacobre, S.A. de C.V. Inlet Resources Ltd. Inmet Mining Corporation [IEMMF.PK]
Jiangxi Copper Company Limited
Kazakhmys PLC Kennecott Utah Copper Corporation KGHM Polska Miedz S.A.
Lihua International, Inc. [LIWA] Lithic Resources Ltd. Los Andes Copper Limited Luvata Oy
Mercator Minerals Ltd. Mitsubishi Materials Corporation Monterrico Metals Plc Mueller Copper Tube Company, Inc.
OZ Minerals Limited
Pacific Booker Minerals Inc. [PBM]
Quadra Mining Ltd.
South American Gold and Copper Company Limited Southern Copper Corporation [PCU] Sterlite Industries (India) Ltd [SLT] Sumitomo Metal Mining Co., Ltd.
Tarquin Resources plc Taseko Mines Limited [TGB] The Alpine Group, Inc. [APNI.PK] Toho Zinc Co., Ltd. Tongling Nonferrous Metals Group Holdings Co., Ltd.
Vedanta Resources plc
Weatherly International plc
Xstrata plc
Zambia Copper Investments Limited