Southern Copper Corporation engages in mining, exploring, smelting, and refining copper and other minerals in Peru, Mexico, Argentina, Ecuador, and Chile. The company is involved in the mining, milling, and flotation of copper ore to produce copper and molybdenum concentrates; smelting of copper concentrates to produce blister and anode copper; refining of anode copper to produce copper cathodes; production of molybdenum concentrate and sulfuric acid; production of refined silver, gold, and other materials; and mining and processing of zinc, copper, molybdenum, silver, gold, and lead. It operates the Toquepala and Cuajone open-pit mines, and a smelter and refinery in Peru; and La Caridad, an open-pit copper mine, as well as a copper ore concentrator, a SX-EW plant, a smelter, refinery, and a rod plant in Mexico. The company also operates Buenavista, an open-pit copper mine, as well as two copper concentrators and two operating SX-EW plants in Mexico. In addition, it operates underground mines that produce zinc, lead, copper, silver, and gold; a coal mine; and a zinc refinery. The company has interests in 156,818 hectares and 502,688 hectares of concessions in Peru and Mexico; and 168,200 hectares and 28,453 hectares of exploration concessions in Argentina and Chile. Southern Copper Corporation was incorporated in 1952 and is based in Phoenix, Arizona. Southern Copper Corporation is a subsidiary of Americas Mining Corporation.

Newmont Corporation engages in the production and exploration of gold. It also explores for copper, silver, zinc, and lead. The company has operations and/or assets in the United States, Canada, Mexico, Dominican Republic, Peru, Suriname, Argentina, Chile, Australia, Papua New Guinea, Ecuador, Fiji, and Ghana. The company was founded in 1916 and is headquartered in Denver, Colorado.

Vale S.A., together with its subsidiaries, produces and sells iron ore, iron ore pellets, nickel, and copper in Brazil and internationally. The company operates through Iron Solutions and Energy Transition Materials segments. The Iron Solutions segment produces and extracts iron ore and pellets, and other ferrous products; and provides related logistic services. The Energy Transition Materials segment produces and extracts nickel; and its by-products, such as gold, silver, cobalt, precious metals, and others, as well as copper used in the construction sector to produce pipes and electrical wires. The company was formerly known as Companhia Vale do Rio Doce and changed its name to Vale S.A. in May 2009. Vale S.A. was founded in 1942 and is headquartered in Rio De Janeiro, Brazil.

ArcelorMittal S.A., together with its subsidiaries, operates as integrated steel and mining companies in the United States, Europe, and internationally. It offers semi-finished flat products, including slabs; finished flat products comprising plates, hot- and cold-rolled coils and sheets, hot-dipped and electro-galvanized coils and sheets, tinplate, and color coated coils and sheets; semi-finished long products, such as blooms and billets; finished long products consisting of bars, wire-rods, structural sections, rails, sheet piles, and wire-products; and seamless and welded pipes and tubes. The company also provides mining products, such as iron ore lumps, fines, concentrates, pellets, and sinter feeds; and coking coal. It sells its products to various customers in the automotive, appliance, engineering, construction, energy, and machinery industries through a centralized marketing organization, as well as distributors. The company has iron ore mining activities in Brazil, Bosnia, Canada, Liberia, Mexico, South Africa, and Ukraine. ArcelorMittal S.A. was founded in 1976 and is headquartered in Luxembourg City, Luxembourg.

Teck Resources Limited engages in exploring for, acquiring, developing, and producing natural resources in Asia, Europe, and North America. The company operates through Steelmaking Coal, Copper, Zinc, and Energy segments. Its principal products include copper, zinc, steelmaking coal, and blended bitumen. The company also produces lead, silver, and molybdenum; and various specialty and other metals, chemicals, and fertilizers. In addition, it explores for gold. The company was formerly known as Teck Cominco Limited and changed its name to Teck Resources Limited in April 2009. The company was founded in 1913 and is headquartered in Vancouver, Canada.

Pan American Silver Corp. engages in the exploration, mine development, extraction, processing, refining, and reclamation of silver, gold, zinc, lead, and copper mines in Canada, Mexico, Peru, Bolivia, Argentina, Chile, and Brazil. The company was formerly known as Pan American Minerals Corp. and changed its name to Pan American Silver Corp. in April 1995. Pan American Silver Corp. was incorporated in 1979 and is headquartered in Vancouver, Canada.

Ternium S.A., together with its subsidiaries, manufactures and distributes steel products in Mexico, Southern Region, Brazil, and internationally. It operates through three segments: Steel, Mining, and Usiminas. The Steel segment offers slabs, hot and cold rolled products, coated products, roll formed and tubular products, bars, billets, and other products. Its Mining segment sells iron ore and pellets. The Usiminas segment offers iron ore extraction, steel transformation, and production of capital goods and logistics; and manufactures and sells various products and raw materials, such as flat steel, iron ore, and stamped steel parts for the automotive industry and products for the civil construction and capital goods industry. It also provides medical and social; scrap; renewable energy; and engineering and other services, as well as operates as a distribution company. In addition, the company engages in the exploration, exploitation, and pelletizing of iron ore. Ternium S.A. was founded in 1961 and is based in Luxembourg City, Luxembourg. Ternium S.A. is a subsidiary of Techint Holdings S.à r.l.

Compañía de Minas Buenaventura S.A.A. engages in the exploration, development, construction, and operation of mineral processing business. The company explores for gold, silver, lead, zinc, and copper metals. It operates operating mining units, including Tambomayo located in the Caylloma province, Orcopampa Unit located in the province of Castilla, Uchucchacua located in province of Oyón, Julcani located in province of Angaraes, Peru, as well as San Gabrie located in the province of General Sánchez Cerro, in the Moquegua region. The company owns interests in Colquijirca, La Zanja, Cerro Verde, El Brocal, Coimolache, Yumpaq, San Gregorio mines, and Trapiche mining unit. In addition, it produces monohydrate manganese sulphate; and operates hydroelectric power plants. Compañía de Minas Buenaventura S.A.A. was incorporated in 1953 and is based in Lima, Peru.