Hi Stoops,
Would be interesting how you came up with $3.80
Best case at 18Mt x.03% Reo x 70% recovery = 3780 t Reo
3780t of Reo = 9450 t at 40% Reo (9,450,000 Kg)
Costs 18Mt x $3.80 (wet plant $3.35 Rom + Dry plant $.45} =
$68,400,000
$68.4m divided by 9,450,000 Kg =
$7.24 per Kg of 40% concentrate