Supporting Technical Assessments

FINAL 340.80 JT, 30°/ -, u, r, CA 341.15 JT, 69°/ 356°, u, r, CN 341.79 JT, 70°/ 340°, u, sl, CLAY 341.84 JT, 45°/ 102°, u, sl, CLAY 342.35 JT, 58°/ 20°, u, r, CLAY 342.60 JT, 65°/ 140°, u, r, CLAY 349.10 JT, 50°/ 20°, u, r, CLAY 349.22 JT, 75°/ 260°, u, r, CLAY 349.72 JT, 70°/ 240°, u, r, CLAY WAIPUPU FORMATION CORE LOSS 0.5m (continued from layer starting at 339.8m ) Moderately weathered; dark blackish grey; clay altered ANDESITE; weak; pyrite disseminated; sulphide rich; frequent drilling induced damage/core spins Moderately weathered; grey; clay altered ANDESITE; weak; pyrite disseminated; non magnetic CORE LOSS 0.5m Moderately weathered; grey; clay altered ANDESITE; weak; pyrite disseminated; non magnetic 344.50 - 345.60 drilling disturbance TCR: 83 RQD: 81 TCR: 100 RQD: 98 TCR: 100 RQD: 100 TCR: 71 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 340.3 341.25 344 344.5 HQTT HQTT HQTT HQTT HQTT HQTT HQTT HQTT MW Sample / Test 340 341 342 343 344 345 346 347 348 349 350 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) 341 342 343 344 345 346 347 348 349 RL (m) 88 87 86 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 : 35 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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