The ANZ thingy is interesting, but the Australian Banks are not...

The ANZ thingy is interesting, but the Australian Banks are not big on sovereign risk, (but ANZ is probably the most aggressive of them!).
With Rothschild effectively out of the market, the next in line would be Maccas-but they tend to stick to mainstream commodities where there is open market trading , ie gold, silver, copper, lead, zinc, nickel and tin.
For an exotic like tantalum, Jack may have tried Rand Merchant Bank, or an equally 'exotic' project financier out of Europe.
World Bank/IFC would still be favourites and they do not move quickly- 3 months would be a quick response on a feasibility study (look how long they took on the original OXR credit proposal).
Lets hope they were given the data at an early stage so that it can tie in with the massive capital raising out of London.
Cheers,TAS