A tailings retreatment project which will exploit historically generated gold tailings deposited in the Kinross, Leslie/Bracken and Winkelhaak tailings storage facility.

Combined hydraulic mining will produce 1.16 Mtpm (0.2 Mtpm to ETRP and 0.96 Mtpm to Elikhulu together with the 0.04 Mtpm of RoM tailings, Elikhulu total throughput is 1 Mtpm).

There are six SAG mills operating in closed circuit with a hydro cyclone. The milled product is nominally 80% passing 75 microns. The mill section is noncyanide exposed as it utilises non contaminated underground water for dilution and gland service water.

The cyclone overflow is directed, via linear screens, to five thickeners (of which two are utilised for the current throughput). The thickened pulp is transferred to the leach, CIP/CIL, circuit via a surge tank into which liquid sodium cyanide is added. The leach configuration is based on one surge tank, two leach tanks, four CIL tanks and seven leach tanks. Eight of the fourteen flat bottomed tanks are air agitated and six are mechanically agitated. Oxygen is injected into the first mechanically agitated leach tank. The tailings from the leach train proceed to the CIP circuit, consisting of six flat bottomed, mechanically agitated, vessels. Virgin and regenerated carbon is added to the last tank of the CIP circuit and is transferred up the train to the first vessel. The partially loaded carbon is transferred to the last vessel in the CIL train, prior to being moved to the head of the CIL. Loaded carbon is screened and forwarded to ZADRA elution in two columns and associated electro winning cells. Eluted carbon is regenerated via a Rotary Kiln before being acid treated. The cathodes are cleaned and the gold sludge filtered and dried, prior to being transported to Rand Refinery.