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Calcrete K1 K2U K2L K3 K4 BK11 Geological Model Country Rock Breccia (CRB) Karoo Lavas (LV) Shale (5) LAVA K3 CRB SHALE CRB K2U K2L SHALE K3 CRE WEST/EAST WEST . Accurate geological model created in 2015 (NI 43-101 report dated 15 August 2015) • Total kimberlite pipe volume modelled at 12.5M m³ (22M tonnes) • High resolution ground magnetics, EM and gravity carried out in 2008. • Hinge tangomining Calcrete K1 K2U K2L K3 K4 Country Rock Breccia (CRB) Karoo Lavas (LV) Shale (S) Accurately re-modelled in 2015 - kimberlite surface size of 6.5 ha 1975 (De Beers); > 8 ha 2008 (Firestone); >9.6 ha 2009 (MPH); 8.7 ha 2015 (Tango). Basalt breccia raft identified in 2015 that diluted the mined resource to date. TGV.TSXV EAST 10

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