Mining giant BHP has admitted it has underpaid almost 30,000 workers, dating back to 2010, and it will cost more than $400 million to make amends.
In a statement to the ASX, BHP said a review suggested rostered employees in Australia had their leave incorrectly deducted on public holidays since 2010.
"There are approximately 28,500 affected current and former employees with an average of six leave days in total that have been incorrectly deducted from affected employees," the company told the ASX.