Hi VYR those are the figures I also used , however according to the VAA the stockpile is the only feed source for FY19 and FY 20 given they have ascribed no expenses for mining in FY19and FY20 .
Using a tonnage weighting of 0.37% for FY19 and 0.21% for FY20 the stockpile grade averages at 0.32% that can also be cross checked by reversing the calculation of the tonnage of Cu produced for FY19 and FY20 the recovery % and the tonnage going through the plant which comes back out to the same 0.32%
Ann: Primary Crusher Bearing Replacement, page-25
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