[1][3] Ore is mined then transported 50 km (31 mi) to the refinery via an overland conveyor system.

Alumina is then transported 55 km (34 mi) to the port of Bunbury for shipping.

[4] In the current approved Life of Operation Plan, total ore reserves are scheduled to be depleted by 30 June 2035.

[1]: 57 The refinery, also owned by South32, uses a four-stage Bayer Process to transform the red bauxite rock into white alumina powder.

It is powered by coal, producing 3.7 million tonnes (8.2 billion pounds) of carbon per year averaged for 2017–2021, making it the fourth-biggest carbon polluter in Western Australia.