Geita is a combined open-pit and underground mining operation with ore extraction from multiple deposits. Underground mining commenced in 2016 at Star & Comet deposits, and at Nyankanga in 2017. Geita is expected to continue operating as a mixed operation until open-pit mineral reserves are depleted. Ore is processed in a 5.2Mt/a carbon-in-leach (CIL) plant with two Knelson concentrators for gravity recovery. Underground operations have continued to ramp-up towards commercial volumes since operations commenced in 2016.