LIMA, October 28, 2026: Peru’s Antamina mine, one of the country’s largest copper-producing operations, has suspended operations as a precautionary measure following the death of a worker in an accident at its Yanacancha site. The company has launched an investigation into the incident and is coordinating with the relevant authorities.
The suspension, announced on Tuesday, October 27, has raised concerns about potential disruptions to Peru’s copper supply. The company has not announced a timeline for restarting operations while the investigation continues.
Worker Dies in Accident at Yanacancha Site
Antamina confirmed that an employee from its operations team died following an accident at the Yanacancha facilities. The company expressed concern over the incident and said it was working with authorities to establish the circumstances surrounding the worker’s death.
The precautionary shutdown is intended to address immediate safety concerns while the investigation proceeds. Further details about the accident and the extent of the operational disruption have not yet been disclosed.
The company has not provided a confirmed date for resuming mining activities.
Major Setback for Peru’s Copper Industry
The suspension represents another setback for Peru’s mining industry, in which copper production plays a significant role in exports and economic activity.
Peru is the world’s third-largest copper producer, making the operational status of major mines such as Antamina important to global metal supply.
Antamina’s copper output declined by approximately 9% in 2025 following another fatal accident at the site. Production had been recovering in 2026 before the latest incident interrupted operations.
BHP, Glencore and Other Major Companies Own Antamina
Antamina is jointly owned by four major international companies: BHP, Glencore, Teck Resources and Mitsubishi Corporation. The mine produces copper and zinc concentrates, along with molybdenum, an important industrial metal used in steel alloys and other applications.
Because of its scale and importance to Peru’s mining sector, any prolonged suspension could affect production schedules and supply-chain planning. However, the company has not yet disclosed the expected production losses associated with the shutdown.
Restart Date Remains Uncertain
A source close to the company told Reuters that there was no timetable for restarting operations while the investigation remained underway.
The duration of the suspension will depend on the investigation’s findings, safety assessments and any measures required before operations can resume.
Market participants will be monitoring further announcements from Antamina for updates on the investigation and the restart of production. Any extended disruption could draw greater attention from copper-market participants already tracking supply conditions and global demand.
Conclusion
Antamina’s decision to halt operations following a fatal workplace accident highlights the importance of safety procedures in large-scale mining operations. While the immediate priority remains investigating the worker’s death and ensuring safe working conditions, the suspension also creates uncertainty for Peru’s copper production.
The next key development will be an official update from the company on the investigation’s progress and the conditions required to restart operations