Capstone Copper Cuts 2026 Production Guidance Floor as Pinto Valley Restart Is Delayed

• Capstone Copper cut its 2026 copper production guidance floor to 195,000 tonnes from 200,000 tonnes following extended downtime at Pinto Valley.
• Additional mechanical maintenance delayed the primary crusher's expected restart from early November to mid-December.
• Temporary mobile crushers should enable a partial concentrator restart in mid-November, with throughput of up to 40,000 tonnes per day.
• The additional downtime is expected to reduce copper production by approximately 5,000 tonnes over the remainder of the year.
• Chile's truckers' strike threatens shipments and key supplies; production at Mantoverde and Mantos Blancos remains unaffected.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Capstone Copper Corporation published the original content used to generate this news brief via Business Wire (Ref. ID: 20261112563888) on November 12, 2026, and is solely responsible for the information contained therein.