Southern Copper Corporation engages in mining, exploring, smelting, and refining copper and other minerals in Peru, Mexico, Argentina, Chile, and Ecuador. 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 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. The company also operates Buenavista, an open-pit copper mine, as well as two copper concentrators and three SX-EW plants in Mexico. In addition, it operates five underground mines that produce zinc, lead, copper, silver, and gold; a coal mine that produces coal and coke; and a zinc refinery. It has interests in 44,182 hectares of exploration concessions in Peru; 148,122 hectares of exploration concessions in Mexico; 64,899 hectares of exploration concessions in Argentina; 36,387 hectares of exploration concessions in Chile; and 7,298 hectares of exploration concessions in Ecuador. The company was founded in 1952 and is based in Phoenix, Arizona. Southern Copper Corporation is a subsidiary of Americas Mining Corporation.