The new Meteor Downs South mine, 45km south-east of Springsure, has produced its first coal.
Minerva mine operator Sojitz Coal Mining developed the thermal coal mine in joint venture with U&D Mining.
The milestone comes about six months after the start of on-site clearing and construction work.
The truck and shovel operation is expected to produce about 500,000 tonnes per annum for the first two years, when Meteor Downs South will rely on road haulage to get its coal to the Minerva rail load-out facility for transport to Gladstone port.
This will be ramped up to 1.5Mtpa when its own rail load-out facility comes online.