Bulga Coal have been found guilty of safety breaches for the 2010 injury of an underground worker.
Scott Newstead was injured in August 2010 when he was struck by a falling slab of coal at the Beltana Longwall.
The NSW District Court heard Newstead did not have adequate training or information, which resulted in him standing under a section of unsupported roof, ABC reported.
The court also heard that a proper inspection would have revealed the risk of roof failure, information that could then have been communicated to the work crew.
In November last year Bulga Coal was found guilty of the injuries sustained by Steve McNab, who was crushed between an advancing roof support and a continuous armoured face conveyor.
Only five weeks before the McNab incident a shearer operator was injured by a projectile piece of coal.