Sedgman Metals Engineering provided detailed engineering, procurement (EP) and commissioning assistance for the leaching upgrade of the 320 kt/a CIL circuit. The contract was executed as a turnkey project.

The project included the design of new leach tanks, new agitators and integration into the existing circuit facilities. The project commenced in July 2007, with commissioning being completed in 1st quarter 2008. Additional leach tank capacity was also installed with this work to improve overall gold extraction. This part of the project was completed in 4th Quarter 2007.