Capstone Copper Commits $3 Billion to Double Chilean Output by 2031
Mining News | 2026-10-28 06:43:19
Santo Domingo, which is in the early stages of construction, will receive the largest portion of the spending, with $2.3 billion earmarked for the project.
By Paul Ploumis
SEATTLE (Scrap Monster): Capstone Copper plans to invest approximately $3 billion in Chile’s Atacama region to double its copper production in the country by 2031, according to the Chilean mining ministry. The investment will focus on developing the Santo Domingo project and expanding output at the nearby Mantoverde mine.
Santo Domingo, which is in the early stages of construction, will receive the largest portion of the spending, with $2.3 billion earmarked for the project. The company also plans to allocate $220 million to two expansion projects at Mantoverde.
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Capstone intends to share infrastructure and operational resources between Santo Domingo and Mantoverde, located approximately 35 kilometers apart. This will improve efficiency and reduce construction and operating costs, officials noted.
Construction at Santo Domingo is expected to create more than 8,000 jobs, while the operating mine is expected to create around 1,500 jobs. Chilean officials anticipate broader economic benefits through increased copper production, employment, business activity and tax revenues.
At Mantoverde, the $176 million Optimized Mantoverde project is already under construction and is expected to add 20,000 tonnes of annual copper production to the mine’s existing output of approximately 95,000 tonnes. A separate $45 million pyrite expansion is projected to contribute another 3,500 tonnes of copper annually. Together, the expansions could raise Mantoverde’s annual copper output to approximately 118,500 tonnes.
POLL
What is Capstone Copper’s primary objective for its planned $3 billion investment in Chile?
Frequently Asked Questions
- How much does Capstone Copper plan to invest in Chile?
Capstone Copper plans to invest approximately $3 billion in Chile’s Atacama region to double its copper production in the country by 2031. The investment will support the development of Santo Domingo and expansion projects at the existing Mantoverde mine.
- How much funding has been allocated to the Santo Domingo project?
Approximately $2.3 billion has been earmarked for Santo Domingo, which is in the early stages of construction. The project is expected to create more than 8,000 construction jobs and around 1,500 jobs once the mine becomes operational.
- How will the Mantoverde expansion affect copper production?
The $176 million Optimized Mantoverde project is expected to add 20,000 tonnes of annual copper production, while the $45 million pyrite expansion could contribute another 3,500 tonnes annually. Combined, the projects could raise Mantoverde’s annual output from approximately 95,000 tonnes to 118,500 tonnes.
