JPM Warns Strike At Major Chilean Copper Mine Could Deliver "Significant" Production Hit

What happened: A strike has begun at Antofagasta's Centinela copper mine in Chile after mediation between the company and the Minera Esperanza and Distrito Centinela unions failed to produce an agreement, per a JPMorgan note. Key numbers: Centinela produced 240,400 metric tons of copper in 2025, over 35% of Antofagasta's total output. Unions represent more than 700 workers. Why it matters: JPMorgan's Natalia Corfield said the impact on production and results could be significant if the strike persists, and a prolonged stoppage could delay the mine's concentrator expansion.

A strike has begun at Antofagasta's Centinela copper mine in Chile after mediation between the company and the Minera Esperanza and Distrito Centinela unions failed to produce an agreement, per a JPMorgan note.

JPMorgan's Natalia Corfield said the impact on production and results could be significant if the strike persists, and a prolonged stoppage could delay the mine's concentrator expansion.