West Australian police are investigating an alleged sexual assault at a Pilbara mine site as a parliamentary inquiry prepares to deliver its findings into abuse with the mining sector.
Gina Rinehart-owned Roy Hill confirmed it had received a report of an individual being assaulted by a fellow contractor at one of its sites over the weekend.
A spokeswoman on Sunday said the company was cooperating with police and WA's industry regulation department in their investigations.
"The reporting individual was provided with immediate support by their contracting company and Roy Hill, and the incident was referred to the police," she said.
"In conjunction with the contractor's employer, the alleged perpetrator has been removed from site and is assisting the police with the investigation.
"Protecting our people's physical and psychological safety is Roy Hill's utmost priority."
The company said it had implemented a stronger security presence at its sites over the past 18 months and taken steps to ensure staff and contractors felt comfortable using facilities, such as opening a female-only gym.
"We work hard to provide a respectful and inclusive workplace where every person feels safe and where they are encouraged and supported to speak up. Any actions contrary to this will not be tolerated," she said.
A WA parliamentary inquiry has heard evidence of widespread sexual misconduct within the mining industry.
Rio Tinto, BHP and Fortescue Metals Group were among the companies to reveal they had sacked workers over assaults and harassment.
They have rolled out a number of safety measures at their mine sites including tougher alcohol limits, enhanced psychometric testing and better CCTV and lighting.
The inquiry is due to deliver its findings on Thursday.