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.
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.
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