Capstone Copper
Operations
Capstone Copper has a portfolio of long-life copper operations in the Americas and a fully-permitted development project in one of the world’s most prolific copper-producing districts. We are well-positioned to deliver value through enhancing the profitability of our operating mines and executing our strategy of transformational growth towards our goal to build the next generation of responsible copper mines.
Operations
Through a commitment to operational excellence, safety and responsible production, we are focused on generating strong cash flows in all price environments with our multi-asset portfolio of mines and projects.
Pinto Valley
Arizona, United States
100%-owned, operating open-pit copper-molybdenum mine located in the prolific Globe-Miami mining district of Arizona, one of the oldest and most productive mining districts in the USA. District consolidation opportunities are being explored to leverage synergies and create economies of scale.
Cozamin
Zacatecas, Mexico
100%-owned, operating underground copper-silver-zinc-lead mine. Since the first full year of operation in 2007, Cozamin has generated positive free cash flow at all points of the copper price cycle. Exploration program underway to evaluate opportunities for mine life extension.
Mantos Blancos
Antofagasta, Chile
100%-owned, operating open-pit, high-grade copper-silver mine. The operation currently mines and processes sulphide and oxide ores. Capstone is currently evaluating the potential to increase throughput of the Mantos Blancos sulphide concentrator plant. Significant near mine and district exploration potential.
Mantoverde
Atacama, Chile
70% ownership (30% Mitsubishi Materials Corporation). Operating open-pit, oxide heap leach copper mine with 32,000 tpd high-grade sulphide processing line expansion (Mantoverde Development Project – “MVDP”) ramped up in 2024. Expansion underway to increase throughput to 45,000 tpd (Mantoverde Optimized Project – “MV-O”). Near-mine exploration potential and district consolidation opportunities exist and continue to be pursued.
Santo Domingo
Atacama, Chile
Top-quartile, fully permitted copper-iron-gold project with cobalt opportunity, located in close proximity to the Mantoverde mine in Chile. Santo Domingo represents the next phase of transformational growth for the Company, with annual copper production averaging 106 thousand tonnes of copper for the first seven years of the mine plan. The project is currently preparing for sanctioning, with detailed engineering and financing decisions advancing.
MV-O
The Mantoverde Optimized (“MV-O”) represents a capital-efficient brownfield expansion of the sulphide concentrator at our Mantoverde mine in Chile, delivering incremental copper and gold production, in addition to mine life extension. The $176 million project is currently under construction, which is expected to be completed in Q3/26 prior to ramp-up in Q4/26.
Responsibility
We care deeply for our people, the environment, and the communities in which we operate. Our commitment to ethical and responsible mining is deeply rooted in our business philosophy, central to our values and vital to our success.