I assume this excludes the original 110kt at 0.4% Cu with no Au...

I assume this excludes the original 110kt at 0.4% Cu with no Au and Ag. Is that correct? That resource was very shallow with an average thickness of maybe 20-30m.

I saw a broker report last year which estimated production of 30kt pa plus some (about 5kt pa) from the original resource over 7 years with an open pit - ie about 200kt of Cu. From memory it excluded Au and Ag as they were credits to ASIC. Given one never mines the full resource then I would assume the resource to be materially higher.

While it's sensible to be conservative IMO your estimates seem to be too conservative especially as they are inclusive of Au and Ag.

Are you able to elaborate how you arrive at your estimate.