The Office of the Work Health and Safety Prosecutor has laid charges over the deaths of Dylan Langridge and Trevor Davis at the Dugald River zinc mine, 65km north-west of Cloncurry.
The matters are set to go before the Cloncurry Magistrates Court on December 13.
MMG and an individual employed by contractor Barminco each face a charge of failing to discharge a health and safety obligation under the Mining and Quarrying Safety and Health Act, according to court records.
Mine owner MMG is reviewing the charges, but said it was not appropriate to comment further while the legal process was underway.
“Our thoughts and sympathies remain with the families and friends of Dylan Langridge and Trevor Davis. Their loss has left a lasting impact across MMG,” a company spokeswoman said.
“Safety is our first value and we remain committed to ensuring that all of our people can go home safely at the end of each day.“
A light vehicle carrying Mr Langridge, 33 from Bundaberg South, and Mr Davis, 36, from Pimpama, fell down a stope at the Dugald River zinc operation on February 15 last year.
A drilling rig also fell down the stope, but that operator survived and raised the alarm.
Rescuers reached the bodies of the two Barminco employees late the next day after making their way through rubble around the vehicle, located in an area about 125m underground.
Related: Loss weighs heavily a year on from Dugald River tragedy
Early findings released by Resources Safety and Health Queensland (RSHQ) pointed to the void being caused by bogging operations on the level below the area where the light vehicle and drill rig had been operating.
RSHQ presented a brief of evidence to the Office of the Work Health and Safety Prosecutor late last year.
A permanent memorial garden dedicated to the pair was officially opened by their families at the Dugald River mine site on the first anniversary of the accident.
