Full Breakdown
Antofagasta’s Centinela Mine Strike Ends with Preliminary Collective Agreement
By Drooid · · How we work
Core Event: Preliminary Deal Reaches Union Members
On Oct 16, workers from the Distrito Centinela and Minera Esperanza unions announced a preliminary agreement on a new collective contract, ending the strike that began on Oct 7. The unions called a meeting Friday night to present the terms, and a vote to ratify the deal is scheduled for Saturday.
Background & Context
The walkout involved more than 700 members who stopped work after contract talks failed on Oct 7. Their chief demand was that all workers receive the same benefits regardless of union affiliation. To heighten pressure, three striking workers began a hunger strike on Oct 9. Negotiations resumed later in the week, leading to the preliminary settlement.
Data & Statistics
- 2025 production: Centinela mine output was 240,400 metric tons of copper.
- The strike coincided with a threatened walkout at BHP’s Escondida mine, raising concerns about copper supply.
- Antofagasta reported that despite the stoppage, the mine maintained normal production levels, avoiding the typical output loss associated with strikes.
Official Statements & Responses
Antofagasta said it had submitted new proposals covering key issues and offering a significant improvement in economic terms for workers. The company emphasized that it succeeded in keeping output stable, thereby preventing the negative effects that a prolonged work stoppage could have caused.
Why It Matters / Impact
The settlement removes a source of uncertainty for global copper markets, which had been buoyed by the strike’s potential to tighten supply amid projected demand growth. By preserving normal production, the agreement helps limit short-term price spikes and sustains Chile’s role as a leading copper exporter.
