Huntly bauxite mine is located near Dwellingup and was established in early 1976. Along with being Perth's closest active mine Huntly is the world’s largest bauxite mine, supplying bauxite ore to Pinjarra and Kwinana Refineries. Huntly bauxite production has doubled since 1990 and currently produces around 23 million tonnes of bauxite per year.
The Willowdale mine, established in 1984, is located east of Waroona and supplies bauxite ore to the Wagerup Refinery. The Willowdale mine produces about 10 million tonnes of bauxite a year.
The ore from Huntly and Willowdale is refined to produce about 10 million tonnes of alumina each year.