BHP’s Escondida, the world’s largest copper mine, saw production fall in September while top miner Codelco saw output rise amid the ongoing coronavirus pandemic in the South American nation, according to government figures released Tuesday.

The Chilean Copper Commission (Cochilco) reported that Codelco – the world’s largest copper mining company – boosted production by 9.6% year-on-year to 159,200 tonnes. The company ratcheted up output by 2.9% between January and September despite restrictions put in place to slow the spread of coronavirus.