Coal quality is carefully monitored and controlled during all phases of production and preparation. This ensures contract specifications are met and uniform quality is maintained. The quality of the insitu coal has been determined by detailed core sampling and analysis. Raw coal quality is monitored by an on line ash analyzer which is located on the raw coal bin feed conveyor.
The quality of the saleable product is monitored by an on line ash analyzer which is located on the conveyor to the product stockpile. The coal in each train is sampled and analysed during discharge at the port of Newcastle. During ship loading operations the coal is sampled and analysed by an independent and certified superintending company.
Stringent coal quality controls ensure that no extraneous matter contaminates the customer's cargos and that the coal delivered meets specified quality requirements.