First Ore5 Aug 2022 10:16
The Western Front zone 1 is where the first production will come from.
They are targeting a 70m deep zone split into 2 levels of about 30m.
The top 30m contains the first section of HAD005 one of our best holes.
There’s some phenomenal gold and copper grades
within it.
Gold grades above 10g/t
11.23
64.1
32
103
211
12
Copper grades over 4%
10.42%
5.4%
8.5%
4%
5.3%
4.1%
You can see the high % of copper suggesting Chalcopyrites and bornites are present.
Chalcopyrites have a specific gravity of c4.1
In the first stoping tunnel targeting this high grade ore it could be 100 metres long x 15m x 30m high in total but not all at same time.
Volume is roughly = 45,000 cubic metres
Multiplied by a normal sg of rock = 45k x 3 = 135,000 ton
Multiply with an sg of 4.1 = 184,500 ton
For a specific gravity of 3 scenario:-
If we say an average of 5g/t x 135,000 = 675,000 •/•31.1 = 21,705 gold ounces
For a sg of 4.1 scenario:-
Or 5g/t x 184,500 = 922,500 •/• 31.1 = 29,662 ounces
Therefore there is an increase of 50,000ton of ore if there’s Chalcopyrites insitu for the same volume
There’s around 7,400 ton of copper using the 4.1 sg which is 2,000 ton more than a 3sg.
Revenues for 25% ownership :-
Gold $13.5m
Copper $16.6m
= c$30m revenue less costs
Ggp costs :-
SLOS operation $73m from top of ore
9 zones is around $8m per zone
Western front zone 1 has 2 levels =$4m each capex
Plus extraction costs
Transport out is at its shortest so probably the lowest AISC costs of the whole mine, I’m estimating $100-150 due to the high grades of both gold and copper.
That’s $300,000 per metre revenue in the first stope to Ggp
Can you see now why I think the AISC will be low in this first zone?