Johannesburg - A miner was killed at Harmony Gold's [JSE:HAR] mine near Carletonville on Thursday, the company said in a statement.
The man died in a rail accident while working on level 113. As a result, all operations on that level were stopped.
Harmony said an investigation was underway.
Earlier in the year, the company considered retrenching workers and possibly closing the mine, following labour disputes.
Management said at the time they had exhausted all possible avenues to achieve normal production and could not find a solution.
In December, more than 1000 employees staged an underground sit-in at the mine demanding that their fellow employees, who had been suspended, be reinstated.
The company generated R134m in profits from the Kusasalethu mine in the third quarter of 2012.