Supporting Technical Assessments

FINAL trace Py 200.40 JT, 40°/ 240°, u, r, CN 200.90 JT, 60°/ 250°, u, r, CA 201.20 JT, 50°/ -, u, r, CA 201.32 JT, 62°/ -, u, r, CN 201.70 JT, 80°/ -, u, r, CA 201.72 VN, 22°/ -, u, r, CA 201.97 JT, 60°/ -, u, r, CA 202.04 JT, 58°/ -, u, r, CA 203.16 JT, 60°/ -, u, r, CA 203.30 JT, 62°/ -, u, r, CA 203.66 JT, 35°/ -, u, r, Py, trace CA 203.80 JT, 55°/ -, u, r, CA 204.10 JT, 50°/ 10°, u, r, CN 204.30 JT, 80°/ 80°, u, r, CN 204.44 JT, 70°/ 10°, u, r, CN 204.66 JT, 75°/ 160°, u, r, CN 204.90 JT, 58°/ 155°, u, r, CN 205.00 JT, 40°/ 340°, u, r, CN 205.06 JT, 18°/ 340°, u, r, CA, trace CLAY 205.70 VN, 40°/ 320°, u, r, Py, trace other sulphides 205.90 VN, 18°/ 310°, u, r, Py, trace other sulphides 206.40 VN, 8°/ 290°, u, r, Py, trace other sulphides WAIPUPU FORMATION Moderately weathered; pale grey; clay altered ANDESITE; moderately strong; pyrite disseminated; non magnetic (continued from layer starting at 199.2m ) Slightly weathered; grey; porphyritic ANDESITE; moderately strong; pyrite disseminated; non magnetic Moderately weathered; pale grey; clay altered ANDESITE; weak; pyrite disseminated; non magnetic CORE LOSS 0.4m Moderately weathered; pale grey; clay altered ANDESITE; weak; pyrite disseminated; non magnetic Slightly weathered; grey; porphyritic ANDESITE; moderately strong; pyrite disseminated; non magnetic TCR: 100 RQD: 100 TCR: 100 RQD: 99 TCR: 100 RQD: 95 TCR: 100 RQD: 100 TCR: 100 RQD: 96 TCR: 67 RQD: 100 TCR: 100 RQD: 100 200.9 205 207.1 207.5 209 PQTT PQTT PQTT PQTT PQTT PQTT PQTT MW SW MW SW Sample / Test 200 201 202 203 204 205 206 207 208 209 210 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) 201 202 203 204 205 206 207 208 209 RL (m) 136 135 134 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 : 21 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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