Lundin Mining Boosts Copper Resources by 37%, Shifts Reserve Focus
Event summary
- Lundin Mining increased its Measured and Indicated copper mineral resources by 37%, reaching 28,372 kilotonnes as of December 31, 2025.
- Proven and Probable copper mineral reserves decreased to 6,347 kilotonnes, largely due to declassifications related to Filo del Sol and Josemaria.
- The company sold the Eagle mine to Talon Metals Corp. on January 9, 2026, removing its reserves.
- Vicuña Corp. reported a 28% increase in inferred copper resources, positioning the project among the largest globally.
The big picture
Lundin Mining's resource expansion highlights the ongoing demand for copper and other base metals driven by electrification and infrastructure development. The shift in reserve focus, with declassifications at Filo del Sol and Josemaria, suggests a strategic realignment towards projects with different development timelines and risk profiles. The company's reliance on exploration success and favorable regulatory environments in South America underscores the inherent risks associated with operating in emerging markets.
What we're watching
- Reserve Conversion
- The ability to convert newly identified resources at Vicuña and Josemaria into reserves will be crucial for Lundin Mining's long-term growth trajectory and hinges on successful technical studies and financing.
- Exploration Success
- Continued exploration success at Caserones, particularly at the Angélica target, will be key to offsetting depletion and maintaining production levels.
- Regional Risk
- The political and regulatory landscape in Argentina and Chile will significantly influence the development timeline and cost structure of the Vicuña project, potentially impacting shareholder returns.
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