Cobalt is a byproduct of nickel and copper mining. In recent years, cobalt has taken its place as one of the world’s most sought-after commodities due to its use in semiconductor chips and the ...
JOHANNESBURG /LONDON, Nov 22 ((Reuters)) - The Democratic Republic of Congo's state miner Gecamines is offering $1 million to buy cobalt and copper assets of indebted mining firm Chemaf to prevent ...