Investor Presentaiton
What went wrong and how can we do it differently?
Focus:
Improve process recovery rate to >95%
◉
Cut 2 pit extension to access high grade material
1
■ Optimize newly installed secondary crushing circuit
Implement an autogenous milling circuit to improve diamond liberation
Result: Improved quality, less diamond damage and size distribution of stones
unlocking higher pricing potential (Nov 2011: stones > 2 ct sold for $ 1200/ct)
tangomining
Focus:
☐
Improve cost efficiency to below US$11/t levels
Tie in installed grid power to replace diesel generator power system
◉
Support outsource model on mine face extraction
◉
Utilize deferred tax assets US$45M
2
■
Autogenous milling can reduce operating cost and increase throughout
Result:
Improve on historical cost to US$10.20/t estimate
November 2011: 2 ct stones recovered
of high color and quality @ $1,200/ct
Current Pit
BK11 East
食
N
Cut 2
Extension
3
Focus:
■
Extend life of mine to > 10 years
Access additional Orapa kimberlite targets through presence and local influence
Improve resource confidence through mining activities
waste stripping estimate
926,719t
TGV.TSXV
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