Copper Mines of Tasmania (CMT) has pleaded guilty in Burnie Magistrates Court after the deaths of two underground workers at Mt Lyell in December 2013.
Craig Nigel Gleeson, 45, and Alistair Michael Lucas, 25, were killed in December, 2013, when they fell from a 22-metre-high platform inside a mine shaft.
CMT was charged with failing to comply with health and safety duties.
The company was also charged with the same offence after the death of Michael Welsh just weeks later in January 2013.
The 53-year-old was killed in a mud rush. CMT did not enter a plea for that charge.
According to ABC, CMT’s Peter Walker said the company very much regretted the incident and had been in touch with the families of the two men to inform them of the company’s plea.
CMT’s general manager at the time of Mr Welsh’s death, Scot Clyde, has been charged with failing to comply with his duties as a site officer.
The case has been adjourned for sentencing in November, while the case involving Mr Welsh’s death was adjourned until October 17 for a plea.