The group of six billionaires have spent the last three months to put together a deal that they hope can convince Malcolm Glazer to sell, says News of the World.
Two members of the consortium are keen United fans and have twice visited Old Trafford to watch the team in action this season.
A financial source in Bangkok told News of the World: “All the finances are in place and they are ready to approach the Glazers.
“They have done their homework down to the minutest detail and realise the Glazers are under pressure to service their mounting debts.
“If ever there was a time for United to be vulnerable to a buyout, it is now.”
Their source added: “Make no mistake, this could be the biggest football deal of all time.
“Roman Abramovich’s investment in Chelsea will be nothing compared to this. If the Glazers are ready to sell, the money is absolutely on the table.”