Harmony Gold – Hidden Valley Gold Mine

Project Case Study

Project Type


Papua New Guinea

About The Project

Construction of a complete gold processing facility including a run-off mine hopper, primary crushing, secondary crushing and 5-kilometre overland conveyor.

We also installed a complete processing plant at the end of the overland conveyor which included a stockpile, reclaim 1 large grinding mill, a regrind mill, 12 leach tanks, 5 thickeners, a flotation circuit, a reagents plant, a lime plant, oxygen plant, a gold room as well as 37 kilometres of interconnecting piping

This project was constructed in the highlands of Papua New Guinea, expending over 1,500,000 hours on-site LTI-free.

Client: Harmony Gold

Project Value: $55,000,000.00

Date Completed: 2008