Awak Mas Gold Mine – Process Plant Detailed Design

Como Engineers was engaged by PT Masmindo Dwi Area (MDA), who are developing the Awak Mas Gold Mine, to provide the detailed engineering design and execution, procurement support and commissioning planning and support for the mineral processing facility. Stage 1 of the processing plant is designed to process 2.5 Mtpa of gold ore via a SAG and Ball Mill grinding circuit, including gravity gold recovery and CIL recovery of gold from gravity tailings. Gold will be recovered from the activated carbon using a 7 tonne capacity split AARL elution circuit and carbon regeneration plant, and doré will be recovered by smelting of electrowon gold from the CIL and gravity circuits. CIL tailings will be treated for safe disposal prior to pumping to a tailings storage facility 300 metres below and 4.7 km distant from the process plant. The Stage 1 design includes provision for a future expansion (Stage 2) to process 3.6 Mtpa. The project was undertaken using PT Como Engineers resources based in Jakarta, with project management and metallurgical support from the Como Engineers office in Perth.