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 copper, molybdenum, zinc, silver, gold and lead. It operates the Toquepala and Cuajone open-pit mines, and smelter and refinery in Peru; and La Caridad, an open-pit copper mine, as well as copper ore concentrator, SX-EW plant, smelter, refinery, and rod plant in Mexico. The company also operates Buenavista, an open-pit copper mine, as well as copper concentrators and operating SX-EW plants in Mexico.