Numbers taken from today's (March 280 Bisha news release and $ values per tonne using present metal prices at Kitco metal calculator. All good news due to improvements on every front, sooo why is sp not going up by 30 to 40 percent?
Mineral Resources as of 01 January, 2011:
Measured: 2,124 kt grading 2.72 g/t Au, 40.01 g/t Ag, 2.26% Cu, 2.07% Zn
Value per tonne 0.094oz Au, 1.38oz Ag, 49.7lb. Cu, 45.5lb.Zn = $448/tonne.
Indicated: 27,726 kt grading 1.62 g/t Au, 38.79 g/t Ag, 1.53% Cu, 3.22% Zn
Value per tonne 0.056oz.Au, 1.34oz.Ag, 33.7lb.Cu, 70.8lb.Zn = $350/tonne
Inferred: 10,570 kt grading 0.67 g/t Au, 47.78 g/t Ag, 0.91% Cu, 5.67% Zn
Value per tonne 0.023oz.Au, 1.65oz.Ag, 20lb.Cu, 124.7lb.Zn = $313/tonne.
Mineral Reserves, Effective Date: 01 January, 2011
Ore Type Ore Au Ag Cu Zn
(kt) (g/t) (g/t) (%) (%)
Oxide
Proven 933 5.75 21.90
Probable 3,719 7.39 31.48
Combined(cut-off~1.0g/t(2)) 4,651 7.06 29.56
Supergene
Proven 844 0.80 43.47 4.92
Probable 6,537 0.77 31.29 3.77
Combined(cut-off~0.50%Cu(2)) 7,382 0.78 32.68 3.90
Primary
Probable 15,759 0.72 44.12 0.97 5.31
Combined(cut-off~0.75%Zn(2)) 16,279 0.72 44.40 0.97 5.40
Total Proven (tonnes) 2,298 2.80 36.77 2.07 1.98
Total Probable(tonnes) 26,015 1.69 39.09 1.55 3.26
Proven & Probable Total 28,313 1.78 38.90 1.60 3.15
(2) Cut-off is based on NSR, Oxide = $29.03/t, Supergene = $26.57/t, Primary = $26.68/t, cut-off grade values shown above are approximate and may be affected by other metal values in the deposit.
Mine life extended to 13 years and waste-to-ore strip ratio increases slightly to 4.2:1.
Bisha 13 year undiscounted cash flow now totals $2,162,000,000 using $1,200/oz gold, $24/oz silver, $3.30/lb copper and $1.00/lb zinc, all on an after-tax, after expansion capex basis.
