It's all about the % cut-off.....24 Jan 2021 13:52
Looking at the link in Dave85's post (very informative), it shows the significant effect the % cut-of Cu point is.
It says:
'The resource tonnage and contained copper increases rapidly as the cut-off grade is reduced. The economic cut-off grade derived from the Scoping Study is 0.20% copper and 0.15% copper at copper prices of US$7,500/t and US$10,000/t, respectively. '
Looking at the table in the link, there is a 50% increase in contained copper when the cut-off point is reduced from 0.3 to 0.2%
The current 310,000 tonnes of contained copper that we have already identified from Prospect Ore drilling (71Mt x 0.44%) is at 0.3% cut off. So if that is increased by 50% we already have 0.5Mt (using 0.2% cut-off).
In the scoping study 0.2% was used IF POC was at $7500. It seems reasonable to use this figure as POC is $8000 now.
I think it reasonable to assume that the extra depth we have drilled (and possible greater width identified tbc), should give us a very good chance of meeting 2Mt if AA use 0.2% cut-off .
And at current POC I dont see why they wont.