Its roles Owner Operator
Sierra Gorda Sociedad Contractual Minera (Sierra Gorda SCM) is a Chilean mining company operating the Sierra Gorda open-pit copper and molybdenum mine in the Antofagasta Region of northern Chile. The mine is located in the commune of Sierra Gorda, approximately 60 kilometers south of Calama and 150 kilometers from Antofagasta, at an elevation of 1,626 meters in the Atacama Desert.
The operation processes low-grade porphyry copper ore, producing copper and molybdenum concentrates along with gold and silver by-products. Key activities include open-pit mining, crushing, grinding using high-pressure grinding rolls (HPGR), flotation, thickening, and tailings management. The company began commercial operations in 2014 and currently processes around 130,000 tonnes of ore per day, with an approved capacity of 230,000 tonnes per day. It emphasizes sustainability through the use of 100% seawater and renewable energy sources.
Sierra Gorda SCM is structured as a joint venture with 55% ownership by KGHM Polska Miedź of Poland and 45% by South32 of Australia. Headquartered in Santiago, Chile, the company positions itself as a pioneer in efficient low-grade mining. It ranks as the eleventh largest copper producer and third largest molybdenum producer in Chile, contributing significantly to the national mining industry while focusing on operational efficiency, safety, and community engagement.
Also known as SGSCM and Minera Quadra Chile Limitada.
chemXplore tracks 1 project involving Sierra Gorda SCM, of which one is active.
Brownfield expansion adds a fourth process line to raise concentrator throughput from ~130,000 to 165,000 t/d; construction expected in 2027; contract value undisclosed, revenue recognized Q3 2026.
active all projects
