You are absolutely right that the operator bears the risks of turning a proposed mine into a producing one and will try to discount the theoretical valuation; but at the same time, several factors are in CUU's favour including being in a politically stable country - mining friendly jurisdiction, minimal environmental issue, close to deep water seaport with reserved capacity, proximity to potential market - China etc. In addition, there's a good chance that over the mine life of 25 or more years, the price of copper will escalate and the buyer gets to keep all the benefits. In addition, if the buyer takes over all the claims besides SC, there is a good chance that the capacity can be cranked up higher than the 180,000 tonnes a day if the demand warrants it.

What I'm saying is that, sure the buyer bears all the operating risks, but the buyer also reaps all future potential benefits including price escalation, increase capacity and increase in mine life due to more metals in the ground than the RE has indicated so far. JMO GLTA!