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TrustFinance Global Insights
5月 08, 2026
2 min read
40

Mining giant Rio Tinto is evaluating an increase to its 17.2% stake in McEwen Copper’s Los Azules project in Argentina. Los Azules ranks among the world's ten largest undeveloped copper projects, signaling a strategic move to secure future supply.
The consideration comes as global miners race to acquire large-scale copper assets to meet surging demand driven by data centers and the clean energy transition. Rio Tinto's technical team is assessing the project's economic potential while testing its proprietary Nuton leaching technology on-site to optimize copper recovery.
The Los Azules project holds an estimated after-tax net present value of $2.9 billion. McEwen Copper is seeking approximately $4 billion in initial capital for development, with first production targeted for 2030. A larger investment from Rio Tinto would be a significant step toward financing the project.
Securing a larger share of Los Azules would significantly strengthen Rio Tinto’s copper pipeline in a highly competitive market. Industry stakeholders are closely watching the ongoing discussions, as the outcome will influence the project's development timeline and Rio’s long-term production profile.
Q: Why is Rio Tinto interested in the Los Azules project?
A: The company aims to bolster its copper assets to meet rising global demand from the technology and green energy sectors.
Q: Who are the other major investors in the project?
A: Besides Rio Tinto's venture Nuton, automaker Stellantis holds an 18.3% stake in McEwen Copper to secure raw materials for electric vehicle batteries.
Source: Investing.com

TrustFinance Global Insights
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