Evolution Mining’s Ernest Henry Operations is located 38km north-east of Cloncurry, Queensland, Australia, within the Cloncurry Shire, it is an underground mining operation employing sub level caving ore extraction methods. The Ernest Henry iron oxide copper-gold (IOCG) deposit sits within the Eastern Succession of the Mount Isa Inlier. Copper and gold are recovered from the ore using traditional grinding and flotation methods in the concentrator. The plant has a current processing rate of ~6.8Mtpa (8.5Mtpa capacity and scalable to ~11Mtpa). The concentrator incorporates grinding, conventional flotation and dewatering. A single copper-gold-silver concentrate is produced by a rougher and a three-stage cleaning circuit. The concentrate is treated at Glencore’s Mt Isa smelter (~150km trucking distance) and metal is refined at Glencore’s Townsville refinery.