Supporting Technical Assessments

FINAL 630.00 VN, 85°/ 210°, u, r, CA, closed 630.14 JT, 85°/ 270°, u, r, CA 630.22 VN, 80°/ 180°, u, r, CA, closed 630.32 JT, 65°/ 185°, u, r, CA 630.47 JT, 70°/ 185°, u, r, CA 630.62 VN, 22°/ 25°, u, r, CA, closed, dark alteration halo 631.16 JT, 68°/ 150°, u, r, CA 631.64 JT, 49°/ 80°, u, r, CA 632.00 VN, 15°/ -, u, r, CA, closed 632.06 VN, 60°/ -, u, r, CA 632.15 JT, 80°/ -, u, r, CA 632.22 JT, 45°/ -, u, r, CA 632.56 JT, 30°/ -, u, r, CA 632.73 JT, 48°/ -, u, r, CA 632.92 JT, 45°/ -, u, r, CA 633.45 JT, 72°/ -, u, r, CLAY, trace Py 633.47 VN, 65°/ -, u, r, CA, closed 633.69 VN, 72°/ -, u, r, CA, trace CLAY 634.00 VN, 70°/ 110°, u, r, CA, gravel sized fragments of host rock, trace clay 635.10 VN, 50°/ -, u, r, CA, closed, trace Py 635.43 JT, 85°/ -, st, r, CN 635.67 JT, 85°/ -, u, r, CA 636.90 JT, 50°/ -, u, r, CA, trace CLAY 637.14 JT, 32°/ -, u, r, CA 637.54 JT, 62°/ 280°, st, sm, CA 638.46 JT, 68°/ 175°, u, r, CA 638.90 VN, 30°/ 315°, u, r, CA, closed 639.26 JT, 52°/ 100°, u, r, CA, trace Py WAIPUPU FORMATION Slightly weathered; pale grey; porphyritic ANDESITE; strong; pyrite disseminated; some randomly orientated calcite veins (<2mm); some with dark grey alteration halos; some gravel to boulder sized inclusions of strong fine grained andesite (continued from layer starting at 625.0m ) TCR: 100 RQD: 95 TCR: 100 RQD: 92 TCR: 100 RQD: 100 TCR: 100 RQD: 100 HQTT HQTT HQTT HQTT SW Sample / Test 630 631 632 633 634 635 636 637 638 639 640 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) 631 632 633 634 635 636 637 638 639 RL (m) -11 -12 -13 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 : 64 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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