Monday, mining companies in the DRC said that proposed changes to mining code adopted by lower house of parliament would do lasting damage to investment.
The permits issued by Minas Gerais state, where the mine is located, allow for the construction of a waste system in a depleted mine to receive tailings.
About 200 coal miners in Kazakhstan refused to leave four mines operated by a unit of ArcelorMittal at the end of their shift on Monday and staged a sit-in.