The company is modifying operations while it awaits the results of its appeal to an order to stop drawing water from the Lagunillas aquifer for 90 days.
Extraction at BHP's Escondida, the world's largest copper mine, fell by 11.6% year-on-year to 80,300 tonnes in November. In 2021 through November, the mine recorded a 14.5% drop.
The country's Constitutional Court upheld a lower court ruling cancelling the environmental permit for the Rio Magdalena project, which covers most of the Los Cedros natural reserve.