I know some gold mines being very profitable treating 0.6 g/t gold ore. After recovery losses, this type of head grade is worth US$44.0 per tonne to the gold miner and that is before OPEX/CAPEX charges.
Therefore, Storms economics of US$51 - US$61 per tonne is quite respectable.
If AW1 can find the tonnes and high-grade copper zone to create a critical resource mass, then building a processing facility is economically feasible.
Calculations:
Price per gram is US$2,684/oz / 31.1025 = US$ 86.30 per gram.
For 0.6 g/t ore = US$86.30 x 0.6 = $51.78 per tonne of gold
After treatment = US$51.78 per tonnes x 85% gold recovery = US$44.01 per tonne treated.
Assume Gold Price is US$2,684/oz, gold recovery at 85% (10th Nov)
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