The Bagassi zone is an area of artisanal prospecting located south of 55 Zone that yielded positive geochemical results. At Bagassi South the mineralization consists of pyrite hosted in quartz veining. The surface definition of the vein can be traced by the artisanal mining. The vein is discontinuous over a strike length of some 800 m and is believed to dip to the southwest. Gold mineralization at Bagassi South is associated with quartz, white mica and pyrite alteration.

The initial access to the deposit will be via a single ramp from surface to the 5265 level (45m below surface). The ramp will ultimately be developed to a depth of 260m below surface (5055 level), providing access to 15 sublevels on 15 m vertical intervals. The ramp will be centrally positioned along strike and three ore blocks will be accessed by on-vein development to the deposit limits. Similar to the operating 55 Zone, mining will be conducted using long hole retreat stoping with cemented rock backfill used to eliminate non-recoverable pillars to maximize mining recovery to 93%.

The existing process plant for the Yaramoko Gold Project was designed for a throughput of 270,000 tonnes per year and comprises of the following:
• Primary crushing
• Grinding – single-stage SAG mill
• Classification
• Gravity concentration and intensive leach reactor
• Leaching and adsorption – carbon in leach (CIL)
• Tailing thickening
• Electro-winning
• Smelting.

The original design of the existing plant considered a future expansion and the necessary allowances were made in the layout and mechanical equipment selection to facilitate a modular type expansion. The expansion maintains the simple and robust design philosophy that was implemented originally. The following upgrades are anticipated:

• A two-stage crushing circuit with a throughput of 100 tonnes per hour, operating at 70 percent availability, and aiming to achieve a design crush of 80 percent passing 20 millimetres.
• A milling circuit with a throughput of 50.2 tonnes per hour, a 20 to 27 percent volume ball charge (24 to 35 percent volume total load), operating at 91.3 percent availability, and aiming to achieve a design grind of 80 percent passing 90 micrometres.
• A carbon-in-leach (CIL) circuit consisting of an additional two adsorption tanks and 8-metre diameter high rate thickener.
• A gravity circuit designed to recover 70 percent of head grade consisting of an additional Acacia leach reactor and two electrowinning cells.
• Additional raw water storage and power reticulation infrastructure.