Australia’s mining boom propelled the economy forward while most other countries were faltering in the global financial crisis. Huge demand from China and India for resources such as iron ore and coal started climbing around 2003, but commodities prices began a downward trend in 2013.

Exports have boomed again, however, to a record $13.4 billion of metals and coal in December, according to the the Australian Bureau of Statistics. The previous record of $12.4 billion was set in December 2013, the heyday of the last boom. Those figures bode well for contractors working in Western…