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Mining & Metals Oil & Gas Antofagasta

Antofagasta resumes Los Pelambres operations after weather shutdown

The copper miner said full-year production guidance remains unchanged after intense rainfall and power outages forced an orderly halt at its Chilean mine.

by tickstock newsroom
The image depicts an industrial mining site featuring a long conveyor belt system that transports materials. The scene is set in a dry, mountainous area with several workers visible in orange uniforms. bImage courtesy of Antofagasta.

Antofagasta (LSE:ANTO) confirmed that Los Pelambres has resumed operations following a shutdown triggered by severe weather in Chile.

The copper miner conducted an orderly halt of the mine's processing plant and mining operations after intense precipitation and intermittent power outages began late on Saturday 18 July.

No safety incidents were reported, and the group said there has been no material impact to equipment or key infrastructure, including the El Mauro tailings dam. The dam's surge ponds, part of the site's water management system, allowed for controlled discharge of excess rainwater during the disruption.

Antofagasta said its full-year production guidance range remains unchanged following the resumption of activities.

The group is also supporting local authorities with road clearance and emergency response across the Choapa Province.

Antofagasta noted it will publish its half-year results on Thursday 13 August, when it will provide a further update on the resumption of activities at Los Pelambres.

News Intelligence what this means for the company

Antofagasta's Los Pelambres mine in Chile resumed operations after an orderly shutdown triggered by intense rainfall and power outages on 18 July. The company reported no safety incidents, no material damage to equipment or infrastructure (including the El Mauro tailings dam), and crucially, maintained its full-year production guidance unchanged—signalling the disruption caused no lasting production loss.

Investment case

The swift resumption and intact guidance suggest operational resilience to acute weather shocks. However, near-term cost pressures from elevated diesel and sulphuric acid prices remain the potential material headwind to monitor at the 13 August results.

Insights assembled by AI. Editor-reviewed and grounded in tickstock’s coverage and proprietary knowledge graph.

Content is for informational purposes only, not financial advice.

by tickstock newsroom