Investor Presentaiton

• . • BK11 NI 43-101 Inferred Resource Statement - effective 15.8.2015* tangomining 17.4 million tonnes (Mt) Inferred Resource containing a total of 780,820 carats ("cts") of which approximately 9.0 Mt (Kimberlite Facies K2U, K2L and K3) averages 6.8 cts per hundred tonnes ("cpht") for a total of 608 000 cts, with higher-grade areas being identified at 9.8 cpht. BK11 contains good quality white diamonds in the top 10% of global gem diamond production in terms of value per ct. The recovery of a 1.5 ct high quality Type lla D colour diamond is significant as it indicates the presence of top quality stones within the BK11 kimberlite, with the potential for large +100 ct stones. Based on the 2015 market, diamond valuation experts advise price of US$260/ct and an upside price of US$285/ct. Av. Facies Code Confidence Level MPH wt. av Grade (cpht) Volume SG Tonnes (m³) Tonnes (Rnd Dwn) Carats Dilution % 1.5 ct high quality Type BK11 Kimberlite Pipe facies (Om to 150m bgl) lla D colour diamond C K1 Inferred Resource Inferred Resource 1.11 683,954 2.48 K2U K2L K3 Inferred Resource Inferred Resource Inferred Resource 5.79 K4 Inferred Resource 3.00 CRB Inferred Resource 2.00 Total 1 4.49 2.34 146,594 2.05 8.23 1,072,124 2.05 9.76 378,148 2.04 2,776,319 227 512,752 2.29 2,117,137 2.35 7,687,028 2.27 1,696,207 1,690,000 18,801 17 300,517 300,000 7,010 27 2,197,853 2,190,000 180,285 27 771,423 770,000 75,180 15 6,302 244 6,300,000 365,010 74 1,174,202 1,170,000 35,134 68 4,975,272 4,970,000 99,400 88 17,417,719 17,390,000 780,820 *see News Release dated 24.8.2015 TGV.TSXV 13.7 ct diamond 11

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