Supporting Technical Assessments

FINAL 280.00 JT, 20°/ 240°, u, r, CA 280.85 JT, 30°/ 170°, u, r, CA 282.70 JT, 51°/ 260°, u, r, CLAY, trace CA 283.47 VN, 60°/ 180°, u, r, Py, trace other sulphides 283.65 VN, 60°/ 200°, u, r, Py, trace other sulphides 284.40 JT, 60°/ 230°, u, r, CLAY 284.48 JT, 50°/ 330°, u, r, CLAY, trace Py 284.60 JT, 55°/ 175°, u, r, CLAY 285.26 JT, 38°/ 210°, u, r, CLAY, trace sulphides 286.50 - 286.80 SZ, 59°/ 90°, u, r, CLAY, possible fault gouge; gravel and sand sized fragments of weathered host rock WAIPUPU FORMATION Moderately weathered; grey; porphyritic ANDESITE; weak; pyrite disseminated; non magnetic; some pale grey clay alteration halos around defects that are weak to moderately strong (continued from layer starting at 277.1m ) Moderately weathered; dark grey; clay altered ANDESITE; weak; pyrite disseminated, sulphide rich; some hydrothermal brecciation through ground mass TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 95 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 288 PQTT PQTT PQTT PQTT PQTT PQTT PQTT PQTT MW Sample / Test 280 281 282 283 284 285 286 287 288 289 290 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) 281 282 283 284 285 286 287 288 289 RL (m) 109 108 107 106 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 : 29 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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