Antamina, one of Peru's biggest copper mines, has suspended operations as a precaution after a worker died in an accident at its Yanacancha site. There is no timetable yet for a restart while an investigation is under way.
At a glance
- Antamina is owned by BHP, Glencore, Teck and Mitsubishi Corp.
- Output at the mine fell 9% last year after another fatal accident there.
- Copper output had been recovering this year before the latest halt.
Background
Peru is the world's third-largest copper producer, and Antamina is one of its largest mines. The mine also produces molybdenum, a metal used to strengthen steel. Copper supply has been tight this year because of disruptions at several large mines.
What happened
Antamina said on Tuesday that it had suspended operations as a precaution after an operations worker died in an accident at its Yanacancha site, Reuters reported. The company has opened an investigation and is working with the authorities.
A source close to the company told Reuters there was no timetable yet for restarting operations while the investigation continues.
Antamina's shareholders are BHP, Glencore, Teck and Mitsubishi Corp. Peru is the world's third-largest copper producer, and the mine is central to its copper industry.
Why it matters
The stoppage is another setback for the mine. Output at Antamina fell 9% last year after another fatal accident at the site, and production had been recovering this year before the latest halt.
Shanghai Metals Market said the stoppage also puts Peru's molybdenum supply on watch, since Antamina produces the metal alongside copper.
What it means
The halt adds to a run of copper supply problems this month. More than 1,200 workers at Teck's Highland Valley Copper mine in Canada walked off the job on October 24, MINING.COM reported. Workers also briefly blocked access to Codelco's Ministro Hales mine in Chile on October 26. Teck is one of Antamina's owners.
How long Antamina stays shut will decide how much copper the market loses.
Our read
Outlook: bullish. A halt at one of Peru's biggest copper mines removes supply from a tight market, though a short stoppage would have limited effect.
What to watch
- When Antamina restarts operations after the investigation.
- Peru's monthly copper output figures.
- Any update from the mine's owners, BHP, Glencore, Teck and Mitsubishi.
For information only, not investment advice.
Copper price in India
metalscost.com India reference price as of 2026-11-01.
Detailed analysis
Timeline
- 2026-10-27: Antamina suspends operations after a worker dies at its Yanacancha site.
Supply Drivers
One of Peru's biggest copper mines has halted, with no restart date set.
Mining Production
Antamina's output fell 9% last year after a previous fatal accident.
What could lift prices
- A large copper mine is offline with no restart date.
- Copper supply has been hit by several mine disruptions this year.
What could weigh on prices
- Precautionary halts after accidents are often short.
- Antamina's output had been recovering before the stoppage.
Country impact
| Country | Impact | Reason |
|---|---|---|
| Peru | Medium | One of the country's biggest copper mines has stopped production. |
Industry impact
| Industry | Effect | Reason |
|---|---|---|
| Copper Mining | Negative | A fatal accident has halted a major mine and raised safety concerns. |
Who gains, who loses
- Other copper producers: Lost output at Antamina could support copper prices.
- Antamina's owners: BHP, Glencore, Teck and Mitsubishi lose output while the mine is shut.
Other ways this could play out
- If the mine restarts within days, the effect on copper supply will be small.
- If the halt lasts weeks, it could add to tightness in the copper market.
Price risks
- A long investigation could keep the mine shut for weeks.
- Further accidents could bring stricter safety rules in Peru.
Technical view
Price is trading below both its 20-period and 50-period moving averages, a bearish alignment.
Computed from metalscost.com's own stored price history.
