The PV of 150 mil (free cash flow) a year for 50 years at a discount rate of 10% is ~1.5 billion at 20% it is 750mil
This does not take into account any CAPEX
these numbers are taken from the september presentation by the way.
there is not as much upside as you think as there is still not a guarantee that this will go into production. However you would think that if Xstrata get involved the sp would increase to equal these more "realistic" project values.
this is all my opinion and is not advice, DYOR.
NKP Price at posting:
52.0¢ Sentiment: None Disclosure: Not Held