Supporting Technical Assessments

FINAL 180.00 JT, 60°/ 70°, u, r, CA 181.25 JT, 48°/ 210°, u, r, CA 181.70 VN, 12°/ 340°, u, r, CA, trace Py 182.07 JT, 62°/ 60°, u, r, CN 182.41 JT, 65°/ 82°, u, r, CA 182.64 JT, 60°/ 100°, u, r, CA 182.78 JT, 80°/ 90°, u, r, CN 183.33 VN, 30°/ 287°, u, r, CA, trace Py 183.95 JT, 50°/ 230°, u, r, CA 184.18 VN, 30°/ 320°, u, r, CA, trace Py and other sulphides 184.36 JT, 79°/ 70°, u, r, CN 184.91 VN, 72°/ 80°, u, r, CA 185.21 JT, 79°/ 225°, u, r, CA 185.60 VN, 82°/ 310°, u, r, CA 185.82 VN, 78°/ 335°, u, r, CA 186.46 JT, 45°/ 240°, u, r, CA 186.74 JT, 60°/ 290°, u, r, CA 186.90 JT, 75°/ -, u, r, CA 187.40 JT, 70°/ 30°, u, r, CA 187.80 JT, 45°/ -, u, r, CA 187.82 JT, 45°/ -, u, r, CA 188.00 JT, 40°/ -, u, sm, CA 188.65 JT, 40°/ -, u, r, CA 189.50 JT, 20°/ -, u, r, CA, trace Py 189.62 JT, 22°/ -, u, sm, CA, trace Py WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic; frequent randomly orientated calcite veins (2-6 mm) calcite veins with pale grey alteration halos (continued from layer starting at 178.0m ) Moderately weathered; pale grey; ANDESITE; moderately strong; pyrite disseminated; clay and pyrite altered; alteration halos around defects TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 99 TCR: 100 RQD: 100 186 PQTT PQTT PQTT PQTT PQTT PQTT PQTT SW MW Sample / Test 180 181 182 183 184 185 186 187 188 189 190 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) 181 182 183 184 185 186 187 188 189 RL (m) 143 142 141 Graphic Notes and Comments: Refer to explanation sheets for abbreviation and symbols. Ground Water Level Time Date Reading Hole depth (mbgl) (mbgl) Equipment: Rig 85 Orientation: 301° Inclination: -20° End of Hole @ 706.8m Contractor: Alton Drilling Casing Method Commenced: 17/05/2021 Easting: 2762594 Hole No. : WNDD011 Completed: 6/07/2021 Sheet : 19 of 71 Hole Length : 706.8 Project : WKP Exploration Tunnel - Ground Investigations Client : OceanaGold Corporation Job Number: 12533958 Processed : HJ System: NZMG 1949 Northing: 6424371 Checked : JHS Datum: NZVD2016 Logged : HJ Site : Willows Farm, Waihi North, Scale @ A4 : 1:50 Method: SURVEY RL: 205 m Flush Return (%) 25 50 75 Weathering Instrumentation Installation Water level Report ID: ROCKLOG || Project: WNDD011.GPJ || Library: GHD - NZGD.GLB || Date: 30 August 2021

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