The Ahafo mine is composed of three orogenic gold deposits that have oxide and primary mineralization. The gold is hosted in brittle shear zones cutting granitic intrusives that have kilometer-scale vertical and lateral extent. Gold occurs primarily in pyrite and secondarily as native gold in quartz veins.

The mining method at the Ahafo mine involves removal of ore and waste rock from an open pit mine. Ahafo has three open pits (Subika, Amoma and Awonsu), with current mining from the Amoma and Subika pits. Subika is in the third stage of a four stage pit, whereas Amoma is in the final stage of a two-stage pit. Ahafo’s available mining fleet consists of open pit loaders and 38 dump trucks, each with a 144 tonne payload.

The processing plant was commissioned in 2006 to process 7.5 million tonnes of primary and oxide ore per year. With the depletion of oxide ore, the current plant throughput has decreased to 6.5 million tonnes per year. The processing plant consists of a crushing plant, a grinding circuit, carbon in leach tanks, elution circuit, counter current decantation circuit and a tailings disposal facility.