Nzema is a contractor operated open pit mine with semi-autogenous grinding SAG in a carbon-in-leach (CIL) circuit. Commercial production started in April 2011. The ore is partially refractory. Additional ore is purchased from 3rd parties for processing at the mill supplement mill feed. In 2016 the mine produced 87koz of gold but this is expected to increase to over 100koz in 2017 owing to the completion of the Adamus pit push back.