Padbury Mining is refusing to break its silence on the identity of the $6 billion backer for a bid to build the Oakajee port and rail project.

The company promised to reveal where the money will come from last Friday, but has reneged on that claim and has been silent ever since.

Padbury says the estimated $6.4 billion required for the big port and rail build will come from Australian private equity partners that wish to remain anonymous. Some reports say the group includes Superkite and Alliance Super Holdings.

The ASX said Padbury must reveal more about its backing, after shares in the firm rose 170 per cent on the back of the announcement early last week.

Several media outlets have linked former hair clinic operator Roland Bleyer to the mysterious bid. There are reports that Mr Bleyer is the “chairman of the finance committee” behind the Oakajee bid.

If Mr Bleyer really is a key source of funds, his wild history may be one of the elements behind Padbury’s silence.

Bleyer’s career has spanned the globe, and some of his crazy tales were revealed in a recent defamation case against a US financial news website.

His colourful claims include once undertaking negotiations with the Greek government to lend the nation billions of Euros to ease its debt crisis.

Bleyer also says he played a central role at an Azerbaijani bank in business meetings with Lebanese Prime Minister Rafic Hariri, who was later assassinated.

He says he was kidnapped in London in 2000 and held captive for several hours. He claims to have been abducted based on his notoriety.

Mr Bleyer also calls himself Ronald Husner.