State mining company Comibol is looking to nearly triple processing capacity at its Minera Quechisla unit including an upgrade of its bismuth smelter.
Senators pass a resolution calling on authorities to refuse an environmental permit for Invecture Group's Los Cardones gold project due to potential impacts on the ecosystem and water resources.
Companies issue financing, acquisition and exploration updates relating to gold, silver, copper and cobalt assets in Peru, Mexico and Chile.
Brazil's federal police reportedly arrested some Petrobras employees involved in bribes over oil deals with companies such as Glencore and Trafigura, the former having an exploration agreement with Vale.
The miner's logistics optimization head said that it does not have the necessary rail infrastructure to respond to increasing demand for copper concentrates.
Recycling in Brazil has remained above 90% since 2004, industry data shows.