The share price of ASX-listed St Barbara fell by nearly 30% on Friday after the company lowered its production forecast and announced plans to continue trucking at its Gwalia gold mine, in Western Australia.
A feasibility study into the Gwalia mass extraction (GMX) project identified an optimised trucking case as the preferred option to haul ore from the mine, despite having evaluated other haulage methods, including hydraulic hoisting using positive displacement pumping, and hydraulic hoisting using three chamber pipe feeder.