Supporting Technical Assessments

FINAL 649.68 VN, 20°/ 230°, u, r, CA, closed, trace Py 649.77 VN, 22°/ 220°, u, r, CA, closed, trace Py 650.32 VN, 50°/ 200°, u, r, CA, closed, trace Py 650.39 VN, 55°/ 260°, u, r, CA, closed 650.62 VN, 45°/ 300°, u, r, CA, closed 650.90 VN, 18°/ 220°, u, r, CA, closed 651.20 VN, 12°/ 220°, u, r, CA, closed, trace Py 651.73 VN, 50°/ 250°, u, r, CA, closed, trace dark alteration halo 651.91 VN, 20°/ 202°, u, r, CA, closed, trace dark alteration halo 652.10 VN, 20°/ 215°, u, r, CA, closed, trace dark alteration halo 652.26 - 652.35 VN, 35°/ 220°, u, r, CA, hydrothermal brecciation 652.47 VN, 25°/ 30°, u, r, CA, closed 653.21 JT, 62°/ 45°, u, r, CLAY 654.22 JT, 60°/ 200°, u, r, CLAY 655.20 JT, 35°/ 210°, u, r, CLAY 659.46 VN, 48°/ 140°, u, r, CLAY, closed 659.84 VN, 51°/ 200°, u, r, CA, WAIPUPU FORMATION Slightly weathered; pale grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic; frequent randomly orientated calcite veins (2-20mm); some with dark grey alteration halos (continued from layer starting at 643.9m ) Slightly weathered; pale grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic TCR: 100 RQD: 98 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 99 653.1 HQTT HQTT HQTT HQTT SW Sample / Test 650 651 652 653 654 655 656 657 658 659 660 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) 651 652 653 654 655 656 657 658 659 RL (m) -18 -19 -20 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 : 66 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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