Quantum Congo Minerals Group SARL was established in Congo,as the head office,with operation offices also in Zambia and Tanzania. QUANTUM CONGO MINERALS GROUP SARL (the Group) is mainly engaged in the exploration and mining of gold, copper and Tantalite. We take pride in supplying our customers with a range of mined and traded metal. We operate in the belief that companies do not just come to us for raw materials, they come to us looking for a competitive edge.