Supporting Technical Assessments

FINAL 89.90 JT, 20°/ 180°, u, r, CA 89.95 JT, 40°/ 275°, u, r, CA 90.35 JT, 30°/ 275°, u, sm, CLAY 90.57 JT, 52°/ 40°, u, sm, CLAY 90.66 JT, 35°/ 260°, u, r, CA, trace CLAY 90.90 JT, 50°/ 220°, u, r, CA, trace CLAY 91.08 VN, 50°/ 280°, u, r, Py, trace CA 91.21 JT, 25°/ 280°, u, r, CN, trace CLAY 91.71 JT, 30°/ 300°, u, r, CA, trace CLAY 92.00 JT, 43°/ 255°, u, r, CA 92.50 JT, 40°/ 220°, u, r, CA, trace CLAY 93.12 JT, 81°/ 80°, u, sm, CLAY, trace Py 93.58 JT, 25°/ 280°, u, r, CA 94.00 JT, 81°/ 300°, u, r, CA 94.15 JT, 40°/ 280°, u, r, CA 94.44 JT, 50°/ 80°, u, r, CA 94.53 JT, 48°/ 305°, u, r, CA 94.73 JT, 41°/ 300°, u, r, CA 95.05 JT, 40°/ 280°, u, r, CA 95.13 JT, 60°/ 280°, u, r, CA 95.30 JT, 22°/ 322°, u, r, CA 95.77 JT, 40°/ 280°, u, r, CA 95.83 JT, 40°/ 330°, u, r, CA 96.22 JT, 38°/ 295°, u, r, CA 96.60 JT, 60°/ 70°, u, sm, CLAY, trace Py 97.20 JT, 35°/ 355°, u, sl, CLAY, trace CA 97.45 JT, 59°/ 320°, u, r, CA 97.60 JT, 71°/ 250°, u, r 97.84 VN, 70°/ 150°, u, sl, CA, trace sulphides 98.56 JT, 48°/ 300°, u, sl, CA, trace CLAY 98.75 JT, 68°/ 160°, u, r, CN, trace CLAY 99.52 JT, 80°/ 80°, u, r, CA, trace CLAY 99.61 JT, 50°/ 140°, u, sm, CA, trace sulphides WAIPUPU FORMATION 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 (continued from layer starting at 67.5m ) TCR: 100 RQD: 94 TCR: 100 RQD: 100 TCR: 100 RQD: 94 TCR: 100 RQD: 91 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 94 PQTT PQTT PQTT PQTT PQTT PQTT PQTT SW Sample / Test 90 91 92 93 94 95 96 97 98 99 100 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) 91 92 93 94 95 96 97 98 99 RL (m) 174 173 172 171 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 : 10 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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