Escondida (Chile)
The world’s largest copper mine, located in the Atacama Desert of northern Chile, is a porphyry copper deposit. It produced approximately 1.35 million tonnes of copper in 2025, accounting for nearly 6% of global mine production—more than the total output of many countries. Situated in an extremely arid desert, the mine relies entirely on desalinated seawater and has increasingly adopted solar and wind power, making it a benchmark for low-carbon mining. With a massive ore body and a remaining mine life of over 50 years, it remains the cornerstone of global copper supply.
Grasberg (Papua, Indonesia)
The world’s largest copper-gold deposit, featuring porphyry and skarn mineralization, produced about 460,400 tonnes of copper in 2025, along with substantial gold output. Once the world’s largest gold mine, its open-pit operation has now closed, transitioning to underground mining. Complex geological conditions, including landslide and groundwater risks, have led to unstable production. Indonesia continues to tighten foreign investment rules through local equity and downstream processing requirements.
Las Bambas (Peru)
A large porphyry copper mine in Peru with Chinese investment, producing 411,300 tonnes of copper in 2025. Although ore grades are high, its biggest vulnerability is a single transport corridor—a highway crossing the Andes. Frequent protests and road blockades by local communities cause annual production disruptions, making it one of the highest-risk core assets in the global copper supply chain.
Buenavista (Mexico)
Southern Copper’s flagship porphyry mine in Sonora, Mexico, produced 409,400 tonnes of copper in 2025. Southern Copper is one of the best cost-controlled copper producers globally. The mine is supported by an integrated smelter, stable capital expenditure, and relatively fewer labor and community conflicts compared to other South American mines, ensuring long-term, stable supply.
Collahuasi (Chile)
A porphyry copper mine in northern Chile, jointly owned by Anglo American (44%), Glencore (44%), and Mitsui (12%). It produced 404,100 tonnes of copper in 2025. Like Escondida, it is located in the Atacama copper belt and faces water scarcity, relying on long-distance water pipelines. The deposit is deeply buried, and the mine is currently undergoing expansion, ranking as Chile’s second-largest copper mine after Escondida.
KGHM Polish Copper District (Poland)
Europe’s most important copper mining cluster, consisting of sedimentary sandstone-type deposits operated by the state-owned KGHM. Total copper production reached 401,100 tonnes in 2025, accompanied by significant silver output that consistently ranks among the highest globally. Unlike South American porphyry deposits, KGHM’s underground mining operations face stringent European regulatory and environmental standards, resulting in higher costs. Supply primarily serves European domestic industry.
Cerro Verde (Peru)
Controlled by Freeport-McMoRan, with participation from Sumitomo and Buenaventura, this porphyry oxide mine produced 391,500 tonnes of copper in 2025. It was one of the first mines globally to adopt large-scale heap leaching and SX/EW (solvent extraction/electrowinning) technology, well-suited for processing low-grade oxide ores with mature and stable operations.
Kamoa-Kakula (DRC)
A world-class stratiform copper deposit in the Central African Copper Belt, producing 385,800 tonnes of copper in 2025. With exceptionally high grades, it represents the global benchmark for high-grade copper mining. DRC copper deposits generally have far higher grades than Chilean porphyries, offering significant cost advantages. However, complex geology and hydrology caused temporary shutdowns in 2025 due to underground flooding triggered by seismic activity. Geopolitical, logistical, power, and security risks remain prominent, making it a core asset in China’s overseas copper strategy.
Antamina (Peru)
A polymetallic VMS (volcanogenic massive sulfide) deposit jointly held by BHP, Glencore, Teck, and Mitsubishi, producing 368,000 tonnes of copper in 2025, along with zinc, silver, and molybdenum by-products. As a multi-metal mine, its comprehensive recovery value is substantial.
Oyu Tolgoi (Mongolia)
Asia’s largest porphyry copper mine, operated by Rio Tinto with a 34% stake held by the Mongolian government. It produced 345,100 tonnes of copper in 2025. Located in the southern Gobi Desert, the underground main ore body is still under development, with significant long-term production potential.
Post time: Nov-04-2026
