The data confirmed improving business sentiment in the broader mining industry which saw an overall rebound in capital expenditure in 2017-18, according to Minerals Council of Australia CEO Tania Constable.

"Increasing capital expenditure in the Australian mining industry is good news for jobs, regional communities and the broader mining equipment, technology and services sector," she said.

"Australia and Australians are benefiting from the mining production boom, including a long period of sustained higher exports and ongoing investment in the latest innovations driving productivity improvements across Australia's mines."

Total mining capex in Queensland for the year came to A$8.6 billion, and $1.9 billion in New South Wales, according to the ABS data.