Supporting Technical Assessments

FINAL Py 581.02 JT, 70°/ 185°, u, sm, CA, trace Py 581.91 JT, 57°/ 180°, u, sm, CA, trace Fe 582.94 JT, 78°/ 260°, u, r, CA, trace Py 583.40 JT, 55°/ 200°, u, r, Py 583.48 JT, 72°/ 220°, u, r, CN 584.07 JT, 78°/ -, u, r, Py 584.64 JT, 50°/ -, st, r, CLAY 586.44 JT, 69°/ -, u, r, CLAY, trace Fe 586.67 JT, 70°/ 330°, u, sl, CLAY 589.27 JT, 79°/ -, u, r, Py, trace Fe WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; some randomly orientated calcite veins (<2mm); some with dark grey alteration halos at defect boundaries; rare gravel to boulder sized inclusion inclusions of strong fine grained andesite (continued from layer starting at 562.3m ) Slightly weathered; pale grey; ANDESITE; moderately strong; pyrite disseminated; non magnetic; some dark grey alteration halos at defect boundaries TCR: 100 RQD: 100 TCR: 100 RQD: 97 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 584.5 HQTT HQTT HQTT HQTT HQTT SW Sample / Test 580 581 582 583 584 585 586 587 588 589 590 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) 581 582 583 584 585 586 587 588 589 RL (m) 6 5 4 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 : 59 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

RkJQdWJsaXNoZXIy MjE2NDg3