Rio Tinto plc (NYSE:RIO) is an international mining company. The Company has interests in mining for aluminum, borax, coal, copper, gold, iron ore, lead, silver, tin, uranium, zinc, titanium dioxide feedstock, diamonds, talc and zircon. Rio Tinto's various mining operations are located in Australia, New Zealand, South Africa, the United States, South America, Europe, and Indonesia.BHP Billiton Limited (NYSE:BHP) is an international resources company. The Company's principal business lines are mineral exploration and production, including coal, iron ore, gold, titanium, ferroalloys, nickel and copper concentrate, as well as petroleum exploration, production, and refining.Tenaris S.A. (NYSE:TS) manufactures seamless steel pipe products on a global basis. The Company also provides pipe handling, stocking, and distribution services to the oil and gas, energy, and mechanical industries. In addition, Tenaris supplies welded steel pipes for gas pipelines in South America.Southern Copper Corporation (NYSE:SCCO) conducts mining operations in Peru and Mexico. The Company owns and operates open pit mines and metallurgical complexes that produce copper, molybdenum, zinc, and precious metals.
Companhia Vale do Rio Doce (NYSE:VALE) produces and sells iron ore, pellets, manganese, alloys, gold, nickel, copper, kaolin, bauxite, alumina, aluminum, and potash. The company is based in Brazil, where it also owns and operates railroads and maritime terminals. It is the largest producer of iron ore and it is the second largest producer of nickel, after Norilsk Nickel, of Russia.
Sociedad Quimica y Minera de Chile SA (NYSE:SQM) produces and markets specialty fertilizers including potassium nitrate, sodium nitrate, and potassium sulfate for the agricultural industry. The Company also produces industrial chemicals, iodine and lithium. SQM markets its products in more than 100 countries.
Grupo Simec, S.A. de C.V. (AMEX:SIM) produces steel. The company operates structural steel mini-mills located in Guadalajara and Mexicali. Simec produces non-flat steel products and specialty steel products for the residential, commercial, and industrial construction industries.
Companhia Siderurgica Nacional S.A. (NYSE:SID) manufactures iron and steel in Brazil. The company operates mines, an integrated steel mill, service centers,ports, and railroads. CSN manufactures and distributes hot-rolled, cold-rolled and galvanized steel products to the automobile, auto parts, civil construction, electrical equipment, and packaging industries.
