Chilean Centinela Copper Mine Workers Strike, Adding Further Uncertainty to Global Copper Supply

铜产量破纪录推动必和必拓股价走高,钾肥项目延期引担忧
Published on: Oct 8, 2026
Author: Amy Liu

The strike at Chile’s Centinela copper mine highlights labor tensions in Chile’s copper industry against the backdrop of high copper prices. Differences in pay and benefits led to the breakdown of negotiations, with more than 700 workers halting work, adding new uncertainty to global copper supply. Although the company has maintained its production outlook unchanged, if the dispute continues or spreads, the already tight copper market could face greater pressure. The Centinela copper mine is operated by Antofagasta Plc.

Copper prices rebounded on Wednesday. As of 09:50 GMT, the benchmark three-month copper price on the London Metal Exchange fell 0.1% to $14,405.50 per metric ton. Despite the stronger dollar on Wednesday, tight supply supported copper prices, which have risen by about 16% so far this year.

According to the two unions Minera Esperanza and Distrito Centinela, the strike began at 8 a.m巴森. local time after mediation led by Chile’s Labor Inspectorate failed to resolve the wage dispute. The unions said that the employees participating in the strike account for 22% of Centinela’s direct workforce, and the stoppage will limit mine operations. Antofagasta said it is willing to continue discussing with worker representatives to reach an agreement that balances the interests of both sides.

This dispute has intensified labor tensions in Chile’s copper industry. Copper prices are currently hovering near record highs, and mining companies are also facing weather-related and operational setbacks. Supervisors at BHP’s (BHP) Escondida, the world’s largest copper mine, are also undergoing government mediation to avoid a strike.

The key sticking point at Centinela is the differences in pay and benefits between employees doing the same work but belonging to different unions. The unions said Antofagasta rejected a proposed mechanism to eliminate these differences and did not offer an alternative. This stoppage is the first strike at Centinela and the second in the company’s history. Centinela is one of Antofagasta’s four mining operations in Chile and produced 240,400 metric tons of copper last year.

If the stoppage lasts for a long time, it could further tighten the already strained copper market, especially if labor disputes spread or coincide with other operational problems at Chile’s major copper mines. Despite the strike, Antofagasta said it does not expect the disruption to change its production outlook.

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