The 39-year-old Tinkler, who has been trying to rebuild his coal empire, will be paid in share options by Rumble.
Rumble CEO Shane Sikora said Tinkler had a track record of creating significant shareholder value in private and public companies, as well as his experience in large-scale financial raisings, and his appointment will “be of great benefit to Rumble shareholders”
Rumble holds one of the largest landholdings in the Fraser Range and is now fully funded for aggressive exploration campaign, in particular at the Big Red and Zanthus targets, following heavily oversubscribed placement raising $1.68 million from Asian small mid-cap investors, family office funds and key global investors participating.
Tinkler said he believed there was significant value to be built at Rumble’s operations in the Fraser Range, a long overlooked region that has been opened up for nickel and gold by Sirius Resources.
In 2012 Tinkler was said to be worth over $1.18 billion, but his fortunate dropped to around $680 million later that year because of slowing demand and falling coal prices.
In June 2013 his biggest remaining asset, a stake in Whitehaven Coal, was bought by his financial backers, enabling him to repay debts, although he lost his Newcastle Jets A-league licence and put his base metals explorer Aston Metals business into receivership, and last year he had to sell his racehorse empire, Patinack Farm.
Tinkler formed his own mine machinery maintenance business before identifying the Middlemount coal mine in central Queensland, just time to ride the resources boom to its peak, and down the other side.
He will be awarded 27 million performance options in Rumble at set milestones between 8cps and 25cps.
“Nathan has been reviewing assets globally for a long period of time, looking for the right investment,” Sikora said.
"That Nathan has decided to join the Rumble team in a corporate advisory role is great news for the company and certainly validates our belief in the quality of our assets that we have in the Fraser Range,” Sikora said.
“The value creation that will come from Nathan’s involvement will be transformational for Rumble as he is incentivised to grow the value of Rumble substantially, and will no doubt attract further global investment in the company through his deep network across Asia.”
Tinkler said Rumble represented “one of the best opportunities in the area” and ticked all the boxes of “quality management committed to building long-term shareholder value, several prospective projects and a major footprint in the region”
Last year Tinkler was called up in front of the NSW Independent Commission Against Corruption over allegations he backed a slush fund set up by disgraced NSW MP and former resources minister Chris Hartcher to support a new coal terminal at Newcastle.