Chile Copper Giant Codelco Hit by Another Mine Accident
Chile’s state-owned copper producer Codelco has confirmed that two workers are trapped following a mudslide at its El Teniente mine, the company said in a statement on Sunday. The accident, which occurred around 2 p.m. local time, was triggered by severe weather affecting central Chile. Three workers were in the open-pit area when the mudslide struck; one was rescued and taken to a medical facility, while the locations of the other two have been identified and a rescue operation is underway.
The incident comes less than two weeks after a separate fatal accident at another Codelco operation, raising fresh questions about safety at the world’s largest copper producer. Codelco has not commented on whether the two events are connected, and the cause of the latest mudslide is still being assessed.
For global markets, the timing is uncomfortable. Copper is the backbone of the energy transition — used in electric vehicles, power grids, data centers and renewable energy infrastructure. Codelco is one of the largest suppliers of the metal, and any disruption to its output ripples through global supply chains. China, the world’s biggest copper consumer, buys heavily from Chile, and its demand has long set the tone for prices.
El Teniente, located south of Santiago, is the world’s largest underground copper mine and one of Codelco’s flagship assets. The mine has been operating for more than a century and accounts for a significant share of the company’s annual production. Weather-related disruptions have become more common in central Chile in recent years, with heavy rains and flooding affecting mining operations and surrounding communities.
Analysts say the immediate market impact depends on how long the rescue and any subsequent safety review take. Copper prices have been volatile in 2026, influenced by a mix of Chinese demand signals, supply constraints in South America and broader macroeconomic uncertainty. Even a short pause at a major mine can tighten inventories and push prices higher, particularly when global stockpiles are low.
Codelco has struggled in recent years with declining ore grades, aging infrastructure and rising costs, and it has been under pressure to maintain production levels. The company’s output has fallen from its peak, and it has been investing in major projects to reverse the trend. Accidents at its mines add another layer of operational risk and can delay those plans.
The rescue effort at El Teniente is ongoing, and local authorities are assisting. Codelco said it is focused on reaching the two trapped workers and supporting their families. Mining accidents are closely watched in Chile, where copper accounts for a large share of exports and government revenue, and where safety standards have been a subject of public debate.
For readers outside the industry, the story is a reminder of where the raw materials for the green transition actually come from — and how fragile those supply chains can be. A mudslide in a Chilean mountain can influence the price of a car battery in Shenzhen, the cost of wiring a solar farm in Europe and the budget of a power grid upgrade anywhere. Whether this accident becomes a brief disruption or a longer setback will depend on the rescue, the weather and how quickly Codelco can reassure investors that its safety problems are under control.