• Revenue reaches new all-time high
• Record low C1 cash costs
• Adjusted EBITDA sets quarterly record, up last five quarters

Capstone Copper Corp. reported financial results for the three months and year ended December 31, 2025. Highlights include record consolidated total contained copper production for Q4 2025 of 58,273 tonnes at C1 cash costs of $2.31/lb. The company achieved 2025 production and cost guidance, with record consolidated copper production for the full year of 224,764 tonnes at C1 cash costs of $2.44/lb. Net income attributable to shareholders was $50.6 million for Q4 2025 and $315.9 million for the full year 2025. Adjusted net income attributable to shareholders was $78.7 million for Q4 2025 and $163.6 million for the full year 2025. Adjusted EBITDA reached a record $308.0 million for Q4 2025 and $952.7 million for the full year 2025. Operating cash flow before changes in working capital was $287.3 million in Q4 2025 and $891.3 million for the full year 2025. The company's net debt increased to $780.1 million as of December 31, 2025, with total available liquidity of $1,015.2 million. Capstone released 2026 production guidance of 200,000 to 230,000 tonnes of copper at C1 cash costs of $2.45 to $2.75 per payable pound of copper.

2026 production guidance of 200,000 to 230,000 tonnes of copper at C1 cash costs of $2.45 to $2.75 per payable pound of copper.

In 2026, Capstone is focused on delivering dependable operational results as it continues to advance its high-return organic growth opportunities, including executing on the Mantoverde Optimized Project construction, tie-in and ramp-up, advancing Santo Domingo towards a sanctioning decision, and progressing its district growth strategy through exploration.