Miners Strike at Capstone Copper’s Mantoverde Mine in Chile After Labour Talks Collapse

Mining workers at the Mantoverde operation of Capstone Copper in Chile have gone on strike after wage and benefit negotiations between the union and management failed to reach an agreement, escalating labour tensions at one of the company’s key assets.

The strike follows the breakdown of collective bargaining talks, with union representatives citing disagreements over compensation adjustments, working conditions and long-term employment terms. Workers voted in favour of industrial action after mediation efforts did not yield a compromise acceptable to both sides.

Capstone Copper said it is assessing the operational impact of the strike at the Mantoverde mine, which is an important contributor to its copper production portfolio. The company noted that it remains open to dialogue and is seeking a resolution that balances workforce expectations with operational sustainability.

Chile, the world’s largest copper producer, has witnessed periodic labour disruptions across its mining sector, often linked to negotiations over wages amid fluctuating copper prices and rising cost-of-living pressures. Analysts warn that extended strikes could affect near-term output and add to global supply concerns, particularly if disruptions persist at multiple sites.

Both the company and union leaders are expected to continue discussions in the coming days, as stakeholders watch closely for signs of a negotiated settlement that would allow operations to resume.