Mining companies expect to spend up to $24 million to bury the Albanese government’s new industrial relations laws, surpassing the cost of the industry’s campaign to kill off Labor’s resource super profits tax in 2010.

The Minerals Council of Australia revealed to the Senate inquiry into the Closing Loopholes Bill that Rio Tinto, BHP and Glencore were the top contributors to the campaign, which includes radio, print, television and social media advertisements.