Chile Copper Strike: Hunger Strike Enters Day 7

Three workers at Chile’s Centinela copper mine entered their seventh day of a hunger strike Thursday, as negotiations between Antofagasta Minerals and two striking unions made no progress. The talks on October 15 began nine days after the walkout, and the dispute isn’t just about money. It’s about whether workers doing similar jobs receive equal treatment.

The Distrito Centinela and Minera Esperanza unions represent more than 700 workers. Their members walked off the job on October 7 after contract talks collapsed. The two sides returned to the negotiating table on Tuesday to try to resolve the standoff, but three days of voluntary mediation haven’t broken it.

What the Unions Say Is at Stake

The unions say the dispute concerns alleged differences in pay and benefits for workers doing similar jobs at the mine. They call it a question of fundamental rights: equal treatment and non-discrimination.

"So far, after three days of voluntary mediation, the company has refused to address a mechanism to end discrimination during the term of the collective agreement," the unions said in a statement. They added that the company kept presenting a financial offer workers had already rejected, while ignoring what they called the central issue.

That distinction matters. A bigger raise doesn’t answer the workers’ complaint if the underlying pay and benefit gaps remain. According to the unions, the company has offered more of what workers already turned down, but no way to fix the disparity.

The Company’s Position

Antofagasta said on Wednesday that it had managed to keep production running as planned. On Thursday, it reported a 7% rise in third-quarter output and maintained its full-year forecast of 625,000 to 655,000 metric tons of copper. The company reaffirmed its willingness to seek an agreement, saying dialogue that week had opened the possibility of a deal.

The company also opposed a hunger strike that could put workers’ health and lives at risk. Yet three workers have accepted that risk for seven days. That says something about how far apart the sides remain and how deeply the grievance runs.

Global Markets Are Watching

The Centinela strike, together with the ultimately averted risk of a supervisors’ stoppage at Escondida, has supported global copper prices. Traders worry that supply may be difficult to expand enough to meet expected future demand. A labor dispute over equal treatment in northern Chile now ripples into a commodity market stretching far beyond the mine gate.

As the stoppage drags on, market attention could increase pressure on both sides to reach an agreement.

Why This Matters:

Workers at a mine reporting rising output are asking a basic question: why do people doing similar jobs receive different pay and benefits? The unions frame it as a matter of fundamental rights, and say the company hasn’t engaged with a mechanism to end the alleged discrimination. Three workers have put their health on the line over it.

Copper is a commodity the world depends on, and disruptions like this one help support prices that benefit producers. When output climbs 7% and forecasts hold, the question of who shares in that performance, and on what terms, doesn’t go away. Voluntary mediation hasn’t settled the dispute. Whether the sides reach an agreement may show how much weight equal-treatment claims carry against production targets.