If the newly created Entreprise Générale du Cobalt is able to capture all production from artisanal miners, it will compete with Glencore, ERG and China Moly.
Despite gold's price slump, strong copper and iron ore prices lifted MINING.COM's ranking of the world's 50 most valuable miners to a new record high of $1.35 trillion.
Company is at the centre of deal talks in the gold sector but it may see its desire to create a South African gold champion thwarted as peers cut exposure to the country.