Joseph P. Campbell

Cobre del Mayo SA de CV operates as a mining company that operates the Piedras Verdes open-pit copper mine. It produces LME Grade A copper cathode and sells certain types of ore for concentration. The company was founded in March 2002 and is headquartered in Polanco, Mexico.

Frontera Copper Corp. produced and distributed copper cathode. It was a mining and exploration company that engaged in copper cathode production. The company was founded in 2002 and was headquartered in Toronto, Canada.

Inmet Mining Corp. explored and mined for copper, zinc and gold. The firm has three mining operations located around the world in Las Cruces, Pyhäsalmi and Cobre Panama. The company was founded on June 1, 1987 and was headquartered in Toronto, Canada.

Phelps Dodge Mining Co. produces copper mining and processing activities. Its copper is used as the primary raw materials for the electrical wire and cable industry, while molybdenum is primarily used by the steel industry and chemical manufacturers. The company is headquartered in Phoenix, AZ.

Part of RAG International Mining GmbH, Cyprus Amax Coal Co. mines coal. Cyprus Amax Coal was acquired by RAG International Mining GmbH from Cyprus Amax Minerals Co. on June 30, 1999 for $1,039 million.

Cleveland-Cliffs Australia Pty Ltd. owns and operates coal mines. It provides iron ore pellets including standard, fluxed, and high manganese for blast furnaces as part of the steel making process. The firm is a subsidiary of Cliffs Natural Resources, Inc. The company is headquartered in Perth, Australia.

Society for Mining, Metallurgy, & Exploration, Inc. operates as a professional society corporation representing all professionals serving the minerals industry in more than 85 countries. Its members are engineers, geologists, metallurgists, educators, students and researchers. The company was founded in 1871 and is headquartered in Englewood, CO.