Copper-cobalt deposits in the Central African Copperbelt belong to Sediment-Hosted Stratiform Copper (SHSC) type and are situated Neoproterozoic Katanga Supergroup. This paper describes detail geology, geochemistry hydrometallurgy of cobalt, with a special focus on Black Ore Mineralised Zone (BOMZ) unit from Ruashi Cu-Co deposit as case study. Based results fieldwork laboratory testing, it was ...