2014 feasibility study v.s revised March 2018 study The following grade tonnage and carats are in dicated in the 2014 study:
Kimberlite tons m grade carats m
5034 13.4 1.74 23.2
Hearns 5.6 2.07 11.7
Tuzo 16.9 1.26 20.6
Total 35.9 1.57 55.3
The following is indicated in the March 2018 study:
5034 9.7 1.91 18.4
Hearns 5.5 1.99 10.9
Tuzo 15.7 1.22 19.1
Stockpile .6 1.61 1
Total 31.5 1.57 49.9
I called the company and asked since the grade went up on average 22% for the 5034 so far because of the diffeence between the 1mm actual production sieve and the tested 1.5 mm sieve in 2014. They stated that theyn will only adjust the grades after they mine the other kimberlites and prove them up with actual figures. You will note they did adjust the 5034 in the 2018 but not to the actual grade we are getting. I asked why and thye we want to err on the side of caution and be conservative. Theoretically we should be able to adjust the tonnages in the 2018 study by the adjusted 22% difference from the 2014 study.
This is what we get adjusting 22% :
Kimberlite tons m grade carats m
5034 9.7 2.12 20.56
Hearns 5.5 2.52 13.86
Tuzo 15.7 1.53 24.02
Stockpile .6 1.96 1.17
Total 31.5 1.91 60.16
And let us not forget the mention in the last conference call Stuart Brown mentioned we can expect a few million carats from the south west corridor. All in all I think we are in fine shape since our carat count agter mining for a full year and a half is going up instead of depleting.