The Minerals Council of Australia trumpeted the achievement, which represented a 35% year-on-year increase.
Between 2016 and 2017, the thermal coal price doubled to over US$100/t and metallurgical coal similarly got to incredibly high growth levels.
Australian Bureau of Statistics data cited by the MCA said there were 200 million tonnes of thermal coal and 172Mt of met coal sent offshore in 2017, although the mining advocacy body did not give data for previous years.
MCA coal director Greg Evans said the value growth had solid foundations.
"The last 12 months continue to show the market fundamentals for Australian coal are positive," he said.
"The high productivity of the Australian coal mining industry, proximity to major markets and strong regional economic and population growth will continue to underpin coal exports in the long term."
