Callide consists of four major pits. The southern area of the mine consists of Dunn Creek, Trap Gully and the Hut pits. The fourth pit, Boundary Hill, is located 20 kilometres to the northwest. The operation has capacity to produce approximately 9.5 million tonnes (Mt) of coal annually. Callide mine operates two electric walking draglines for overburden removal. Truck and excavator pre-stripping is also used in advance of the dragline operation.

The current Boundary Hill pit is mined using open cut mining techniques. Overburden is removed by a walking dragline supported by a hydraulic excavator and truck pre-strip fleet. A hydraulic excavator is used to load coal into rear dump trucks for transport to the run-of-mine (ROM) stockpile located at the existing Boundary Hill pit.

The mine produces sub-bituminous, sub-hydrous, low rank, steaming coal with good combustion properties, primarily for domestic power generation, but also with export blend potential. This coal is sent to a coal handling plant to be processed to a top size of 75 mm before being transported to customers.

Callide Mine is well-established in the Callide Basin with long-term supply contracts with local customers. The entirety of coal from the Project will be railed to Gladstone where it will either supply local customers, such as the Gladstone Power Station, Yarwun Alumina Refinery and Queensland Alumina Refinery, or exported through the Port of Gladstone to external markets.

As the coal is exported as a raw thermal product it does not require washing, and consequently there are no coal rejects or tailings.