GR Engineering will play a key role in the definitive feasibility study (DFS) at Galena Mining’s Abra base metals project in Western Australia.
Galena has launched the DFS and bankable feasibility study (BFS) at Abra in the state’s Gascoyne region.
The company has retained GR Engineering for the next phase of development after the two companies worked together on the pre-feasibility study.
GR Engineering’s role on the DFS will involve plant design, capital cost and operating cost estimation, process and non-process infrastructure evaluation.
Galena managing director Alex Molyneux said the Abra feasibility study demonstrated outstanding investment returns.
“We’re keen to see it engineered to the highest standards so we’re in a strong position to commence construction next year,” Molyneux said.
Galena plans to complete the DFS by mid next year as it works towards launching production in 2021.
The company has appointed a full-time metallurgy and study manager to lead the internal DFS work.
It plans to continue to add to the technical and operating team in the lead up to construction.
The Abra PFS proposed a 1.2Mt/y throughput underground mine and conventional flotation concentrator with annual production of 91,000 tonnes of lead and 760,000oz of silver over a 14-year mine life.
Abra’s economic outcomes from the PFS included a pre-tax net present value of $528 million and an internal rate of return of 50 per cent.