I_C_ I don't understand why you say that an increase in the resource does little to the NPV. Just doing a quick calculation, I believe an increase of .4 MT has a possible increase in share value of several $/share all other numbers being equal. I have used the $8500 of price per ton and $2000/T cost of production so yes those do have a large affect on the NPV but so does an increase in total tonnage. A change of just one or two $ per share is a big deal depending on the # of shares held. JMO the deputy