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HIGGINSVILLE GOLD OPERATIONS

Higginsville Mill

Gold Processing

Gold mineralization is processed the Higginsville Gold Mill is sourced from the Beta Hunt Mine and open pit mines at Higginsville. The Higginsville Mill flowsheet (shown below) is a conventional CIP gold circuit with quaternary crushing and ball milling with a gravity recovery circuit on the cyclone underflow. Grinding is followed by leaching with a production capacity of 1.4Mtpa.

The gravity recoverable gold from the mineralization, which is recovered through a Knelson concentrator and Acacia high intensity leach reactor is treated separately to produce bullion. The mill cyclone overflow product flows to a leach circuit. The pregnant solution reports to carbon adsorption tanks followed by an acid wash and elution before the electrowinning circuit produces a calcine for smelting.

There are several approved tailings storage facilities on site, with deposition to open pits located on site. There is also a four paddock tailings storage facility that could be used in the future if required with additional dam lifts or expansions.

> Figure 1

Higginsville Gold Mill Flowsheet

Technical Reports

Technical Report Western Australia Operations - Eastern Goldfields: Beta Hunt Mine and Higginsville Gold Operations