A key player in the fight against the Rudd Government's original mining tax is to give up his post at the end of the year.
Mitch Hooke, chief executive of the Minerals Council of Australia, helped wage the big miners' war against the former Resources Super Profits Tax - and won.
Mr Hooke led an advertising, media and lobbying blitz backed by Rio Tinto, BHP Billiton and Xstrata against the mining tax in its previous incarnation and secured lucrative concessions for the majors under a revised Mineral Resource Rent Tax, agreed to with Julia Gillard and Wayne Swan.
The size of the concessions was revealed recently when the Federal Government was forced to admit its tax had raised just $126 million in the first six months of its operation, well short of the $2 billion it had forecast.
In contrast, the original RSPT was expected to raise as much as $12 billion in its first two years.
Minerals Council chairman Peter Johnston said Mr Hooke, the council's chief executive since 2002, had made an enormous impact on the industry and the wider public-policy landscape.
"He has been a tireless campaigner for the minerals sector during some of its most difficult periods," he said in a statement.
Mr Hooke had considerable success improving the industry's environmental and social performance as well as enhancing the sector's relationship with indigenous Australians.
Mr Johnston said Mr Hooke had built a strong and highly-regarded organisation with a capable secretariat, an engaged membership and a reputation for policy integrity and credibility.
Mr Hooke has agreed to continue as a special adviser for 12 months after he steps down as chief executive.