Capstone Copper cuts 2026 output by 5,000 tonnes
Key points
- Capstone Copper extended maintenance at its Pinto Valley mine and cut its lower 2026 production guidance by 5,000 tonnes.
- Capstone Copper shares fell to $10.93 on the ASX following the operational update.
- The company is deploying temporary crushing equipment in mid-November and mitigating supply risks from a national truckers strike in Chile.
Capstone Copper (ASX:CS) lowered the bottom end of its 2026 copper production guidance by 5,000 tonnes to 195,000 tonnes due to extended crusher repairs at Pinto Valley.
Plant operations at the Arizona mine were originally scheduled to resume in early November.
Capstone Copper stated that off-site component manufacturing will delay the primary crusher recommissioning until mid-December 2026.
The company expects temporary mobile crushing equipment to enable a partial concentrator restart in mid-November with throughput capacity of up to 40,000 tonnes per day.
Following the announcement, the Capstone Copper share price was down at $10.95.
In Chile, a national truckers strike over elevated fuel prices poses shipment and supply risks, though the company stated production at Mantoverde and Mantos Blancos remains unimpacted.
Capstone Copper recently reported Q3 2026 adjusted EBITDA growth and agreed to sell its Cozamin mine in Mexico for up to US$385 million to streamline its portfolio.
