PERTH (miningweekly.com) – Coal miner Stanmore Coal has reported a 12.9-million-tonne maiden Joint Ore Reserves Committee- (Jorc-) compliant reserve for its Isaac Plains underground mine, in the Bowen basin.
The reserve was generated during a prefeasibility study into the underground mine, assessing a 1.2-million-tonne-a-year run-of-mine operation producing a mix of semi-soft coking coal and thermal coal.
A bankable feasibility study is currently under way for the underground operation.
Meanwhile, Stanmore on Monday also increased the total Jorc resource at the Isaac Plains complex from 79.2-million tonnes to 82.2-million tonnes, with 79% of the total resource categorised as measured and indicated.
The miner noted that some 31.3-million tonnes of the resource are at a depth of less than 100 m.