Company has agreed to sell its 80% stake in the Kestrel mine to a consortium comprising of private equity manager EMR Capital and Indonesian coal company Adaro Energy.
The accident killed 19 people, left hundreds homeless and unemployed and caused sludge to wash downstream into the neighbouring state of Espírito Santo.
Results from 11 of the 12 drilling rigs at its 85%-owned Cascabel copper-gold project, suggest there is much more intense mineralization in the property than thought earlier, the company said.
Soaring cobalt and lithium prices are pushing some companies to dig for them in the recycle bin, which some believe could be even more profitable than mining them.