Labour hire contractors at Grosvenor mine were treated "differently" to the permanent workforce and would lose their bonuses if someone was injured onsite, a miner has told an inquiry. Counsel assisting the board Ruth O'Gorman asked Mr Sellars to explain the benefits and drawbacks of being a permanent worker compared to a labour hire contractor in the mining industry. "(There's a) huge difference between being a permanent and a labour hire contractor," Mr Sellars said. He went on to explain how contractors were treated differently to the permanent workforce. "It's just the way it is," Mr Sellars said. "In a permanent workforce you've got more of a voice to speak up.