Jan 1 (Reuters) - Canada-based Capstone Copper (CS.TO), opens new tab said on Thursday that a union representing about half the workers at its Mantoverde copper and gold mine in Chile and roughly 22% of the company's total workforce will launch a strike on January 2.
The copper miner said it had sought to reach a new collective bargaining agreement before the strike notice and will gradually scale down operations at the mine in a safe manner. Output is expected to run at up to 30% of normal levels during the stoppage, it added.
Capstone said it remains open to talks to resolve the dispute.
Mantoverde is 70% owned by Capstone and 30% by Mitsubishi Materials (5711.T), opens new tab. The mine is forecast to produce between 29,000 and 32,000 metric tons of copper cathodes in 2025.