The Chapada mine, in the northwest state of Goiás, began production in 2007 and is expected to churn out about 54,500 tonnes of copper and 100,000 ounces of gold this year.
In a three-year partnership, supported by a R6-million Gold Fields grant in 2017, a range of research projects are underway at both post-graduate and under-graduate level in the Wits School of Mining Engineering.
Ranked: the world's 10 biggest copper mines by 2025 production — from Escondida's 1.3M tonne output to Oyu Tolgoi. Updated rankings with mine-by-mine data.