On December 26th, the Phase II copper and cobalt project of Kolwezi copper mine started pre-commercial production. The Phase II project began on March 24th, adopting processing method as crushing, grinding, solvent-extraction, electrowinning, and cobalt precipitation. The designed production of Phase II is 50,000 tonnes of copper, 3,000 tonnes of cobalt. Kolwezi copper mine was the first copper mi...