Mining: Rancagua
Key Facts
—Decision. On 4 August 2026, Codelco temporarily suspended development and construction of the Andes Norte project at its El Teniente mine in central Chile.
—Reason. The state miner cited an emerging deep-seismicity phenomenon at the mine’s lowest levels, which it says behaves differently from risks it has historically managed.
—Scale. The measure affects four contractor companies, more than 20 contracts and about 3,000 workers, according to Chilean media, and pauses a flagship expansion.
