Open cut mines can be highly profitable at grades of less then 1g per tonne. Some of the world’s most profitable porphyry mines are less than 0.5g.
We won’t need anywhere near 10g although there is a good probability that we will get it.
So far most of our discovery is close to surface but looking like it also extends deeper.
It looks like we also have copper and silver bi products which can considerable reduce costs.
Ann: Mulga Bill high grades & geophysics upgrades size potential, page-85
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Change
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