one thing that has to taken into account is the mine life, as a general rule 1 year of mine life = a p/e of 1 , i.e.
a 5 year mine life = a p/e of 5, unfortunately some companies like ctl the deposit is very expensive to drill
to get a long mine life up front, they generally work on a 2-3 year rolling mine life, which means the
market fairly or unfairly gives them a lower market valuation as to the uncertainty of when the resource
will be depleted
a lot of people don't factor this metric into their valuations of companies and thus don't understand
why a companies share price isn't going up