copper - will it test 4000 again?, page-9

Hi,
Posted a while back, I think that based on projected life of mines[ie Phu Kam 10 years for instance], PNA worth about 40c with a cu price of 2.50 and gold at 950.
Plus whatever you want to add for blue sky with further exploration, or takeover premium[although dont see that happening any time soon]. Have no idea how much, if any, this extra figure should be.
With low debt, price should become just a function of price of outputs, presuming input costs stay the same,mine life and exchange rate.
If I'm right, should roughly go up and down in proportion to these prices.
cheers