The conclusions of the Preliminary Feasibility Study are:
- A Measured Mineral Resource of 436.5 million tonnes grading 0.30% copper, 0.23 grams per tonne ("g/t") gold, 0.02% molybdenum and 1.55 g/t silver, and an Indicated Mineral Resource of 929.8 million tonnes grading 0.23% copper, 0.15 g/t gold, 0.02% molybdenum and 1.56 g/t silver at a 0.20% Copper Equivalent cutoff;
- A Proven Mineral Reserve of 411.1 million tonnes grading 0.32% copper, 0.019% molybdenum, 0.23 g/t gold and 1.72 g/t silver and a Probable Mineral Reserve of 409.9 million tonnes grading 0.28% copper, 0.020% molybdenum, 0.19 g/t gold and 1.79 g/t silver
18.6% internal rate of return after recovery of capital costs and before taxes,
$11.734 billion after recovery of capital costs and Pre-Tax Cash Flow,
$2.764 billion NPV after capital recovery and before taxes, discounted at 8% over 23 year mine life,
Cost of copper production net of by-product sales of gold-molybdenum-silver is a negative $0.32/pound, and
4.7 years, after recovery of capital costs and before tax, payback period.
