Supporting Technical Assessments

FINAL 530.32 - 530.35 SS, 40°/ -, u, sl, CLAY, trace weathered gravel sized fragments of andesite 531.71 JT, 71°/ -, u, r, CN 532.30 JT, 41°/ -, u, r, CA 532.70 JT, 82°/ -, st, r, CN 534.00 JT, 60°/ 245°, pl, r, CA 534.16 JT, 71°/ 230°, pl, r, CA 534.65 JT, 85°/ 100°, pl, r, CA, trace Py 534.80 JT, 48°/ 180°, u, r, CA 535.39 JT, 61°/ 200°, u, r, CN 535.50 JT, 50°/ 220°, u, r, CA 535.52 JT, 52°/ 300°, u, r, CN 535.67 JT, 50°/ 200°, u, r, CA 536.33 JT, 51°/ 310°, u, r, CN 536.70 VN, 50°/ 60°, u, CA, closed, trace Py 536.79 JT, 42°/ 285°, u, r, CA 537.00 JT, 45°/ 280°, u, r, CN, trace Py 537.70 JT, 33°/ 310°, u, r, CLAY, trace CA and Py 538.24 JT, 36°/ 160°, u, r, CN 538.66 JT, 78°/ 220°, u, r, CN WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; some dark grey halos around defects; rare gravel to boulder sized inclusion inclusions of strong fine grained andesite (continued from layer starting at 517.2m ) Slightly weathered; grey; fine grained ANDESITE; strong; some calcite phenocrysts (possible intermittent flow/large clast) TCR: 100 RQD: 100 TCR: 100 RQD: 99 TCR: 100 RQD: 97 TCR: 100 RQD: 100 533.95 HQTT HQTT HQTT HQTT SW Sample / Test 530 531 532 533 534 535 536 537 538 539 540 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) 531 532 533 534 535 536 537 538 539 RL (m) 23 22 21 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 : 54 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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