Supporting Technical Assessments

FINAL boundaries, closed 119.82 JT, 62°/ 309°, u, r, CA, trace Py 120.45 JT, 82°/ 5°, u, r, CA, trace CLAY 120.70 JT, 79°/ 150°, u, r, CA 121.86 JT, 70°/ -, u, sm, CA 122.07 JT, 65°/ -, u, r, CA 122.90 JT, 35°/ 230°, u, r, CA, trace CLAY 123.10 JT, 39°/ 155°, u, r, CA 123.46 JT, 35°/ 280°, u, r, CA 123.64 JT, 30°/ 180°, u, r, CA 123.80 JT, 40°/ 205°, u, r, CA 124.05 JT, 41°/ 260°, u, r, CA 125.90 JT, 85°/ 260°, u, sm, CA, trace CLAY 126.50 VN, 22°/ 280°, u, r, CA 127.60 JT, 71°/ 300°, u, r, CN 127.90 JT, 30°/ 309°, u, sm, CA, trace CLAY 128.29 JT, 40°/ 300°, u, r, CA 128.65 JT, 80°/ 300°, st, sm, CA 129.00 JT, 50°/ 18°, st, r, CA, trace Py 129.46 JT, 60°/ 270°, u, r, CN 129.65 JT, 42°/ 40°, u, r, CA, trace Py WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic; frequent randomly orientated calcite veins (2-6 mm) with pale grey alteration halos; some gravel to boulder sized inclusions of red (hematite altered) andesite (continued from layer starting at 112.9m ) TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 PQTT PQTT PQTT PQTT PQTT PQTT PQTT PQTT SW Sample / Test 120 121 122 123 124 125 126 127 128 129 130 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) 121 122 123 124 125 126 127 128 129 RL (m) 163 162 161 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 : 13 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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