Wiluna Stage 1 Sulphides Project

Scope of Work

Wiluna Operations Pty Ltd (WMX) has engaged GR Engineering to undertake a turnkey (EPC) contract for the design, engineering, procurement and construction for Stage 1 of their Sulphides Ore Concentrate Plant involving the design and construction of a 750,000 tonne per annum gold concentrator and concentrate filtration plant at their Wiluna gold operations in Western Australia.

The Project is located within the Northern Yilgarn, in the Mid West region of Western Australia. The nearest capital city is Perth, 750 kilometres to the southwest, with the closest regional centres being Kalgoorlie, 540 kilometres to the south, and Meekatharra, 183 kilometres to the west. Access from Meekatharra is via the Gunbarrel Highway.

WMX currently process oxide ore to produce gold dorê. Based on the current operating schedule, the oxide ore resource will be consumed in the latter part of 2021. In order to continue the Wiluna gold operations, WMX intends to transition to mining sulphide ore and upgrade the existing process plant in order to process the sulphide ore.

The sulphide processing plant is designed to operate at the conclusion of oxide ore processing, and is comprised of the following main process areas:

  • Crushing (existing);
  • Grinding (existing with modification);
  • Flotation;
  • Concentrate handling;
  • Reagents and services.
  • The sulphide processing plant will produce a sulphide-rich gold concentrate.

GR Engineering site construction works commenced in March 2021 with the project being commissioned in December 2021.

Project Fact Sheet

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Associated News

EPC Contract - Wiluna Gold Operation - Concentrator

EPC Contract - Wiluna Gold Operation - Concentrator

GR Engineering is pleased to announce that it has been appointed as EPC contractor by Wiluna Mining Corporation for stage 1 works relating to the concentrator development program for its Wiluna Gold Operations located in Western Australia.

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  • Client Wiluna Operations Pty Ltd
  • Award Date December 2020
  • Completion Date December 2021
  • Location Wiluna, Western Australia
  • Project Manager Geoff Tanner
  • Project TypeBrownfields, Turnkey EPC contract