Supporting Technical Assessments

FINAL 303.22 JT, 55°/ -, u, r, CN 303.39 JT, 45°/ -, u, r, CN, trace CLAY 304.87 VN, 40°/ -, u, r, CA 306.50 VN, 30°/ -, u, r, Py 307.98 JT, 65°/ -, u, r, CA, trace CLAY 308.52 JT, 18°/ -, u, sl, CLAY WAIPUPU FORMATION Moderately weathered; dark grey; clay altered ANDESITE; weak; pyrite disseminated; sulphide rich; frequent drilling induced damage/core spins 300.00 - 300.30 recovered as gravel sized fragments - drilling induced TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 300 PQTT HQTT HQTT HQTT HQTT HQTT HQTT MW Sample / Test 300 301 302 303 304 305 306 307 308 309 310 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) 301 302 303 304 305 306 307 308 309 RL (m) 102 101 100 99 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 : 31 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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