In order to establish a cost of production in US$/lb equivalent Cu, Cobalt is considered as a byproduct  of copper production and therefore is accounted as a decrease in operating costs
One metric tonne is 2204.6 lb avoir du poids	2 204.6
			loans
	$/lb	$/mt	leverage %	50%
copper price	1.10	2 425	duration years	10
cobalt price	10.00	22 046	interest	12%
DRC & communities incl royalty & lease		tax rate	30%
transport cost from mine site to shipping at Durban RSA is estimated to be 338.5US$/tonne of metal
	Phase 1	Phase 2	Phase 3	Phase 4 years 4 thru 20
G&A costs k$	19 596	15 579	17 392	11 913
G&A costs k$ as % of technical costs	24.2%	10.2%	8.6%	7.2%
replacements are considered to be required from year 5 thru 20 at a total cost of 2 312 630 000 US$ which represents 3.4% of the initial equipment of years 1 thru 4. Thus 70% of initial equipment is replaced from year 5 thru 20.