VANCOUVER, February 24, 2011 /PRNewswire-FirstCall/ -- - IRR 27%, NPV $155 Million at a 10% Discount Rate and a 3.4 Year Payback (After Tax) Capstone Mining Corp. ("Capstone") (CS: TSX) today announced that its wholly owned subsidiary, Kutcho Copper Corp., reports the results of the Prefeasibility Study ("2011 PFS") completed by JDS Energy & Mining Inc. ("JDS") on the Company's Kutcho Project located in north-western BC. By incorporating exploration drill results from 2008 and 2010 the 2011 PFS successfully converted much of the Main deposit and the Esso deposit mineral resources into a National Instrument 43-101 ("NI 43-101") reserve. The 2011 PFS exhibits a 27% IRR (after tax) and a $155 million NPV (after tax) at a 10% discount rate. Therefore, Capstone is proceeding with permitting and further engaging stakeholders in consultations regarding development.