Brazil's government will revise a decree that opened up a vast mineral reserve in the Amazon rainforest to mining responding to overwhelming criticism.
In an effort to receive more financial benefits from mining operations, the government's proposal will also require investors in the sector to get legislative approval before operating.
Copper output in Congo, Africa's top producer of the metal, rose 15 percent year-on-year in the first half of 2017 to more than half a million tonnes, and cobalt production surged 27 percent to almost 40,000 tonnes, the central bank said.
