Supporting Technical Assessments

FINAL 62.28 VN, 40°/ 80°, pl, sm, Py, trace other sulphides 62.40 JT, 45°/ 275°, u, r, CN 64.20 VN, 55°/ 5°, u, r, CA 64.85 JT, 75°/ 340°, u, r, CA, trace CA 65.12 JT, 45°/ 320°, u, r, CN 66.00 JT, 60°/ 290°, u, r, CA 67.75 JT, 60°/ 90°, u, r, CA 68.57 VN, 60°/ 80°, u, r, CA 68.65 JT, 58°/ 120°, st, r, CN, trace CLAY 68.90 JT, 60°/ 245°, u, r, CN 69.07 JT, 35°/ 250°, u, r, CN, trace CLAY WAIPUPU FORMATION Moderately weathered; clay altered porphyritic ANDESITE; weak; pyrite disseminated; non magnetic Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic; some randomly orientated calcite veins (2-6 mm) with pale grey alteration halos; some gravel to boulder sized inclusions of red (hematite altered) andesite TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 95 TCR: 100 RQD: 94 60 67.5 PQTT PQTT PQTT PQTT PQTT PQTT PQTT PQTT MW SW Sample / Test 60 61 62 63 64 65 66 67 68 69 70 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) 61 62 63 64 65 66 67 68 69 RL (m) 184 183 182 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 : 7 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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