Whitehaven has vowed to defend the proceedings.
The level of interest in this matter is significant, IPC chair Mary O'Kane said.
Whitehaven has long advocated for the role of HELE coal in a more carbon constrained future.
Bis has been part of the Gunnedah operations since February 2014.
The Whitehaven balance sheet is stronger than at any point in the company's history.
If approved the mine would operate over the next 30 years.
Deals Whitehaven into the prolific Bowen Basin region.
Things settling down after longwall move.
Believes its high quality, low emission coal could help reduce carbon emissions.
Mines intercept large volumes of rainfall during operations, most of which is caught in dams.
Metallurgical coal production from the mine in FY2018 was 2.6 million tonnes.
Simec is still investigating what caused the situation.