Supporting Technical Assessments

FINAL trace CA 330.10 JT, 65°/ 55°, u, r, CN 330.36 JT, 35°/ 310°, u, r, CN 330.47 JT, 15°/ 340°, u, sl, CLAY, trace CA and Py 330.67 JT, 50°/ 18°, u, r, CN, trace CLAY 337.75 - 338.65 SZ, 30°/ 297°, u, sl, CLAY 338.70 JT, 61°/ 20°, u, sl, CLAY, trace other sulphides 338.72 VN, 60°/ 18°, u, r, CA WAIPUPU FORMATION Moderately weathered; dark grey; clay altered ANDESITE; weak; pyrite disseminated; sulphide rich; frequent drilling induced damage/core spins (continued from layer starting at 316.3m ) CORE LOSS 0.4m Moderately weathered; dark blackish grey; clay altered ANDESITE; weak; pyrite disseminated; sulphide rich; frequent drilling induced damage/core spins CORE LOSS 0.6m Moderately weathered; dark blackish grey; clay altered ANDESITE; weak; pyrite disseminated; sulphide rich; frequent drilling induced damage/core spins Vein structure: Slightly weathered; pale grey CHERT with fine to medium gravel sized calcite and quartz phenocrysts; pale yellowish white clay and other sulphides Shear zone: highly weathered; light grey; clay altered ANDESITE; weak; pyrite disseminated; sulphide rich Moderately weathered; dark blackish grey; clay altered ANDESITE; weak; pyrite disseminated; sulphide rich; frequent drilling induced damage/core spins CORE LOSS 0.5m TCR: 100 RQD: 100 TCR: 87 RQD: 100 TCR: 100 RQD: 100 TCR: 50 RQD: 100 TCR: 100 RQD: 100 TCR: 83 RQD: 81 333.1 333.5 335.3 335.9 336.8 337.85 338.7 339.8 HQTT HQTT HQTT HQTT HQTT HQTT MW SW HW MW Sample / Test 330 331 332 333 334 335 336 337 338 339 340 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) 331 332 333 334 335 336 337 338 339 RL (m) 92 91 90 89 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 : 34 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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