The Catoca Mining Company Ltd. is an Angolan company of prospecting, exploration, recovery and marketing of diamonds, made by Endiama EP., representing the Angolan state, with a 41% stake, Alrosa, a Russian multinational company, with 41%, Leviev International - LLI (China), with 18%. Catoca is the largest diamond company in the subsector in Angola, being responsible for the extraction of more than 75% of Angolan diamonds. Beyond the kimberlite of Catoca that explores in Lunda Sul, the Company has majority stake in concessions as the Luemba, Gango, Quitúbia, Luangue, Vulege, Tcháfua and Luaxe.