Southern Copper Corp. engages in the development, production, and exploration of copper, molybdenum, zinc, and silver. The company is headquartered in Phoenix, Arizona and currently employs 16,133 full-time employees. The firm is engaged in the production of copper, molybdenum, silver, and zinc. The Company’s mining, smelting and refining facilities are located in Peru and Mexico and conducts exploration activities in those countries and in Argentina, Chile and Ecuador. Its segments include the Peruvian operations, Mexican open-pit operations and Mexican underground mining operations. Its Peruvian operations include the Toquepala and Cuajone mine complexes and smelting and refining plants, including a precious metals plant, industrial railroad and port facilities. Its Mexican open-pit operations include the La Caridad and Buenavista mine complexes and the smelting and refining plants, including a precious metals plant and a copper rod plant and support facilities that service both mines. Its Mexican underground mining operations include five underground mines that produce zinc, copper, lead, silver and gold, and a zinc refinery.