Feasibility Study and Technical Report - Pretivm

Table 13.10 Metal Contents of Composite Samples (2010 to 2011)Head Grade (g/t)CompositeAuAgComposite GH2 4.93 52.9Composite BZ2 0.91 7.7Composite WZ1 1.79 25.4Composite SU-98 73.30 2.5Composite SU-76B 12.60 13.0Composite SU-32C 11.00 10.4Composite SU-32A 3.80 25.8Composite SU-33 3.68 22.1Table 13.11 shows the head assay of the 2009 and 2010 composites. The assay datareveals that there is a significant variation between the grades obtained from standardfire assay and metallic analyses procedures. This indicates that the gold in some of thesamples occurs in the form of nugget gold.Table 13.11 Metal and Sulphur Contents of Composite Samples (2009 to 2010)Sample IDAu (1)(g/t)Au (CN) (2)(g/t)Au (3)(g/t)Ag (4)(g/t)Ag (CN)(g/t)S(-2)(%)C(org) (5)(%)Cu (4)(ppm)As(%)SU-4 1.86 - 1.75 3.9 - 2.67 0.22 57 0.113SU-5 0.99 - 1.10 34.8 - 1.58 0.10 235 0.026SU-6A 1.36 - 1.98 67.3 - 3.63 0.06 101 0.020SU-6B 1.05 - 5.23 12.9 - 3.79 0.19 90 0.029SU-10 0.71 - 0.76 8.3 - 1.89 0.13 77 0.011SU-19 1.35 - 1.57 6.6 - 2.03 0.25 133 0.010SU-21A 0.62 - 0.64 10.3 - 2.39 0.14 70 0.026SU-21B 5.23 - 5.05 12.3 - 2.07 0.18 96 0.031SU-25 1.64 - 2.12 11.4 - 1.86 0.22 34 0.025SU-27 0.64 - 0.91 4.0 - 1.21 0.15 23 0.033SU-032A 2.46 1.70 2.24 13.3 11.7 3.50 0.11 66 0.016SU-032B 0.84 0.78 1.42 71.1 73.8 3.11 0.35 57 0.007SU-032C 1.90 1.62 3.06 1.9 4.0 2.93 0.29 27 0.024SU-033 2.17 2.10 3.42 24.5 29.8 3.08 0.21 63 0.018SU-036A 1.40 0.68 1.30 10.2 8.8 3.23 0.22 104 0.046SU-036B 0.64 0.41 0.55 3.8 3.0 3.56 0.33 26 0.028Comp R8 1.14 - 1.44 - - - - 60 0.022Comp GH 1.65 - 1.73 - - - - 131 0.022Comp BZ 1.53 - 1.67 - - - - 77 0.020Notes:(1) whole sample assay; (2) CN = cyanide soluble; (3) metallic analyses; (4) by ICP; (5) org = organiccarbon.Pretium Resources Inc. 13-9 1291990200-REP-R0012-02Feasibility Study and Technical Report on the BrucejackProject, Stewart, BC