Supporting Technical Assessments

FINAL Py 221.00 JT, 71°/ -, u, r, CA 221.30 JT, 75°/ -, u, r, CA 225.90 VN, 45°/ -, st, r, CA 226.20 - 226.40 SZ, 12°/ 255°, u, r, CLAY, trace Py and CA; gravel sized fragments of host rock 226.60 JT, 39°/ 260°, u, r, CLAY, trace CA 227.02 JT, 50°/ 230°, u, r, CA 227.05 JT, 65°/ 230°, u, r, CA 227.44 JT, 65°/ 260°, u, r, CA 227.75 JT, 72°/ 272°, u, r, CA 228.17 JT, 50°/ 252°, u, r, CA 228.43 JT, 50°/ 250°, u, r, CA 228.52 JT, 50°/ 60°, u, r, CA 228.73 JT, 63°/ 240°, u, r, CA 228.96 JT, 60°/ 250°, u, r, CA 229.16 JT, 80°/ 40°, u, r, CA 229.25 VN, 55°/ 255°, u, r, CA 229.47 JT, 35°/ 260°, u, r, CA WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic; some randomly orientated calcite veins (2-6 mm) (continued from layer starting at 215.5m ) Slightly weathered; dark grey; porphyritic ANDESITE; strong; slightly magnetic; chlorite present; pyrite at defect boundaries TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 98 TCR: 100 RQD: 88 227.25 PQTT PQTT PQTT PQTT PQTT PQTT PQTT SW Sample / Test 220 221 222 223 224 225 226 227 228 229 230 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) 221 222 223 224 225 226 227 228 229 RL (m) 129 128 127 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 : 23 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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