The company said in an investor's presentation that its Isaac Plains East's BE1370 dragline performance year-to-date was on track to exceed forecast plans.

Its annualised operating hours are at 7500 hours, which is above the industry benchmark of 6500.

Its year-to-date operating hours as of March 2019 came to 5630 hours and its operating rates year-to-date came to 1927 bank cubic metres per operating hour.

The company said the Isaac Plains complex was fully operational with a capacity of 3.5 million tonnes of run-of-mine coal.