TAS

If you read a presentation by TAS in Aug 2012, then you would think that if everything goes well, then this is another Olympic Dam.  The good news is RIO believes it.  That is why TAS share price has been doing well lately.  The drilling is very expensive because the deposit is very deep.

When WMC (taken over by BHP) was searching for the IOCGU deposit, it was at the last hole when success was achieved.  Because of its depth, it is a very expensive mine to develop.  There is another large deposit in the same area but Carapeteena has been bought by OZL.   OZL also owns Prominent Hill around the same Gawler Craton area.

If BHP had committed to develop Olympic Dam, then this site would be worth more because of spending on infrastructure.  But never mind, TAS has RIO's deep pocket!