Supporting Technical Assessments

FINAL 70.05 JT, 25°, u, r, CN 70.25 VN, 50°, u, r, CA, dark allteration halo 71.25 JT, 55°, u, r, CA 71.70 VN, 50°, u, r, CA 71.90 JT, 20°, u, r, CN, dark allteration halo 72.35 JT, 15°, u, r, CA 72.60 VN, 70°, u, r, CA 72.72 JT, 10°, u, r, CA 72.80 JT, 40°, u, r, CA 72.96 JT, 30°, u, r, CN 73.00 VN, 20°, u, r, CA 73.05 VN, 30°, u, r, CA 73.20 JT, 20°, u, r, CN 73.35 VN, 60°, u, r, CA 73.50 JT, 45°, u, r, CA 73.90 VN, 70°, u, r, CA 74.10 VN, 50°, u, r, CA 74.60 JT, 30°, u, r, CN 74.65 VN, 50°, u, r, CA 75.65 JT, 50°, u, r, CN 75.70 VN, 30°, u, r, CA 76.00 VN, 50°, u, r, CA 76.50 VN, 25°, u, r, CA 76.90 JT, 38°, u, r, CN 77.50 VN, 25°, u, r, CA 78.00 VN, 10°, u, r, CA 78.15 VN, 25°, u, r, Py, at clast boundary 70.20 75.20 76.20 78.10 71.30 WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; strong (continued from layer starting at 66.7m ) Moderately weathered; light grey; LAPILLI TUFF (andesite); weak; clay alteration; subangular to subrounded gravel sized clasts; some cobble sized clasts; some drilling disturbance PLT 3.18 MPa PLT 2.77 MPa PLT 2.81 MPa - PLT 2.73 MPa - PLT 1.63 MPa - TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 79 PQTT PQTT PQTT PQTT PQTT PQTT PQTT SW MW Sample / Test 70 71 72 73 74 75 76 77 78 79 80 20 60 200 600 2000 Estimated Strength (MPa) Defect Spacing (mm) Description (and sub Detail) Visual Defect Result Geological Unit Material Description Number / Type EW VW W MS S VS ES TCR RQD SCR (%) Depth (m) 71 72 73 74 75 76 77 78 79 RL (m) 167 166 165 164 163 162 161 160 159 158 Graphic Notes and Comments: Refer to explanation sheets for abbreviation and symbols. Shear Vane values are corrected. Ground Water Level Time Date Reading Hole depth (mbgl) (mbgl) Equipment: RIG 83 Orientation: 0° Inclination: -90° End of Hole @ 231.7m Vibrating Wire Piezometers at 49.00m, 142.00m, 217.00m PLT are corrected to Is(50) Contractor: Alton Drilling Ltd Casing Method Commenced: 29/07/2020 Easting: 2762466.08 Hole No. : WNDD007 Completed: 11/08/2020 Sheet : 8 of 24 Hole Length : 231.7 Project : WKP Exploration Tunnel - Ground Investigations Client : OceanaGold Corporation Job Number: 12533958 Processed : HJ System: NZMG Northing: 6424304.837 Checked : JHS Datum: NZVD2016 Logged : HJ Site : Willows Farm, Waihi North, Scale @ A4 : 1:50 Method: SURVEY RL: 237.07 m Flush Return (%) 25 50 75 Weathering Instrumentation Installation Water level Report ID: ROCKLOG || Project: WNDD007.GPJ || Library: GHD - NZGD.GLB || Date: 15 September 2021

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