Ann: First Ni-Cu-Co Concentrate Produced at Savannah, page-65

Looking at the Picture , Guess how many Tons is that Concentrate.
Pan Concentrate consists below.
▪ Product - sulphide concentrate with a typical specification of
8% Ni, 4.5% Cu, 0.6% Co, 46% Fe, <1.0% MgO

If this weighs 10 tons then 8% = 0.8 ton or .8ton * 2204/ton = 1763.2 lbs Nickel.
1763.2 lb* $9.23/lb $US16 M or A$21.7 M. PAN Operational Expenditure Average / Quarter
is around A18 M in 2018 not including CAPEX which PAN doesn't have that burden anymore.
Just my guesstimate. Could be more than 10 Tons.