Century Cobalt | Cobalt Leaders
Glencore PLC | LSE:GLEN | Market Cap: $52.45B. Glencore is the world's largest cobalt-mining company, with total production in 2017 of 27,400 tonnes, and plans to increase output to 63,000 tonnes by 2020. To grow its cobalt and copper presence, Glencore invested $960 million in 2017 to increase its stakes in 2 mining companies in the ...