Cut-off %7 May 2021 14:21
Current economic grade cut-off % are 0.15% at $10K POC and 0.20% at $7500 POC
They both have symmetry and work out at $15 (% cut-off x POC)
It looks reasonable to assume POC could get to $12K by end of the year?
If so the cut-off equivalent, using same methodology, for same final value, would reduce to 12.5% (12.5% x $12K POC = $15)
Looking at previous data values from other mining cut-offs, the contained copper increases by 50% when cut-off decreases from 0.3% to 0.2%, and by 70% when cut-off decreases from 0.3% to 0.15%(lowest current economic cut-off).
So as POC is now over $10K we can use lowest economic cut-off of 0.15%. At the current lowest economic cut-off of 0.15%, our current JORC of 0.3mt cont copper at 0.3% cut-off, should increase to circa 0.5mt .
IF POC keeps increasing to $12K I wonder if a new lower economic cut-off will be used below 0.15%? And if so, I wonder what that would do to our current JORC contained copper value?
Even if the assay results are disappointing, at this cut-off point we must have a very good chance of hitting 2mt. If we are at 0.5mt from current JORC (using 0.15%) then we only need to x4 value and from looking at the volume from current drill results, I think we should at least do that.
Of course AIMHO