Minera Tres Valles is a Chilean copper producer focused on responsible, efficient operations and sustainable growth. From the Chalinga, Cárcamo, and Chuchiñí valleys, we produce 99.99% Grade A cathodes using ore from our mines and local small and medium-scale partners.
Copper drives electrification and modern infrastructure, and with innovation and strong community partnerships, Minera Tres Valles contributes to a cleaner, more connected global future.
The mining portfolio of the GCR Group, the parent company of Minera Tres Valles, the strategic focus is on copper, nickel, and cobalt. These metals are the key materials driving global technological progress and the transition to a sustainable future.
Minera Tres Valles is a cornerstone of this portfolio, contributing a significant share to GCR’s overall copper production.
Copper is central to GCR Group’s mission of building a sustainable future. With its superior conductivity and recyclability, copper underpins modern progress and the shift to a low-carbon, electrified world.
Minera Tres Valles, GCR’s flagship Chilean operation, produces high-grade copper to meet rising global demand for responsible supply.
Copper produced at our assets,
Fully recyclable and highly versatile, copper is key to a sustainable, low-carbon future.
Its exceptional conductivity makes it essential for advanced technologies, electronics, and renewable energy.
As an alloy, it gains strength and heat resistance, ideal for plumbing and other durable applications.
Its natural antimicrobial properties also support healthcare safety.
Africa, Botswana
Tataki Mining
Minera Tres Valles is part of the GCR Group, which operates across South America and Africa, strategically positioned in some of the world’s most resource-rich mining regions.
In Chile, Minera Tres Valles plays a central role in the Group’s copper portfolio — producing high-grade copper that supports global electrification and clean energy development. Across its operations, GCR Group combines innovation, efficiency, and responsible practices to deliver the critical minerals that power a sustainable future.
At GCR Group, we rethink mining. As a global critical minerals operator, we supply key materials for clean energy, mobility, and future technologies.
Rather than starting from scratch, we revitalize high-potential assets into efficient, future-ready operations—creating impact from local communities to global supply chains.
With operations across two active mining regions on two continents, GCR is driving the future of clean energy with over 175,000 tonnes of projected copper production. Our portfolio supports 1,000+ direct jobs and up to 8,000 indirect jobs at full scale, backed by more than $1 billion in asset value and 500 km² of exploration potential. From Chile to Botswana, our copper hubs are powered by renewable energy and sustainable practices.
Chile and Botswana
Copper, cobalt, nickel, zinc
Direct and indirect employees
asset replacement value
Exploration potential
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Africa holds immense untapped mineral wealth critical for the global energy transition and battery technologies. Botswana offers political stability and a growing mining infrastructure that enables investors to responsibly extract these resources and supply the global market.
Next-Generation Polymetallic Operation
Tataki Mine, located in Botswana, is currently being transformed into one of Africa’s most advanced and sustainable polymetallic mining operations. After eight years in liquidation, the asset is now undergoing full-scale revitalization by Tataki Mining Company, part of GCR, with a focus on technological innovation, environmental responsibility, and lasting local impact.
With over 120 million tonnes of nickel-, copper-, and cobalt-rich ore and tails, Tataki is well positioned as a major supplier of critical minerals essential to the global energy transition. Work is actively progressing at the Phoenix Pit, targeting 40 million tonnes of run-of-mine (ROM) material, alongside the reprocessing of more than 80 million tonnes of surface stockpiles.
Built for sustainability, Tataki operates using renewable energy, biodegradable reagents like glycine, and a growing fleet of electric mining vehicles. Its modular plant design and strong environmental safeguards establish a new standard for responsible mining on the continent.
Expected Life of Mine
Total Mineral Inventory in the Pit and in Surface Stockpiles(1)
Expected Number of Direct Jobs to be Created(2)
NOTES:(1) Calculated with NSR methodology; value not JORC compliant
(2) At steady state operations
Would you like to learn more about the Tataki Mining Company?
Minera Tres Valles is part of the GCR Group, which operates across South America and Africa, strategically positioned in some of the world’s most resource-rich regions.
GCR Group’s strategy is to combine innovation, efficiency, and responsible practices to deliver the critical minerals that power a sustainable future. Minera Tres Valles’ high-grade copper plays a central role in this vision.
As a global critical minerals operator, GCR Group supplies key materials for clean energy, mobility, and future technologies.Rather than starting from scratch, we revitalize high-potential assets into efficient, future-ready operations.
We believe in creating impact for everyone from our local communities to our global customers.
With operations across two active mining regions on two continents, GCR is driving the future of clean energy with over 175,000 tonnes of projected copper production. Our portfolio supports 1,000+ direct jobs and up to 8,000 indirect jobs at full scale, backed by more than $1 billion in asset value and 500 km² of exploration potential. From Chile to Botswana, our copper hubs are powered by renewable energy and sustainable practices.
U.S.-based company with operations in Botswana and Chile
Including copper, cobalt, nickel, zinc
Direct and indirect employees
asset replacement value
Exploration potential
Would you like to learn more about GCR GRoup?
Africa holds immense untapped mineral wealth critical for the global energy transition. Botswana offers political stability and growing mining infrastructure that enables investors to responsibly extract these resources and supply the global market.
Next-Generation Polymetallic Operation
Tataki Mine, located in Botswana, is currently being transformed into one of Africa’s most advanced and sustainable polymetallic mining operations. After eight years in liquidation, the asset is now undergoing full-scale revitalization by Tataki Mining Company, part of GCR Group, with a focus on technological innovation, environmental responsibility, and lasting local impact.
With over 120 million tonnes of nickel-, copper-, and cobalt-rich ore and tails, Tataki is well positioned as a major supplier of critical minerals essential to the global energy transition. Work is actively progressing at the Phoenix Pit, targeting 40 million tonnes of run-of-mine (ROM) material, alongside the reprocessing of more than 80 million tonnes of surface stockpiles.
Built for sustainability, Tataki operates using renewable energy, biodegradable reagents like glycine, and a growing fleet of electric mining vehicles. Its modular plant design and strong environmental safeguards establish a new standard for responsible mining on the continent.
Expected Life of Mine
Total Mineral Inventory in the Pit and in Surface Stockpiles(1)
Expected Number of Direct Jobs to be Created(2)
NOTES:1 Calculated with NSR methodology; value not JORC compliant
2 At steady state operations
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