Supporting Technical Assessments

FINAL 150.00 JT, 12°/ 320°, u, r, CLAY, trace Py 150.60 JT, 60°/ 290°, u, r, CLAY 151.00 JT, 40°/ 285°, u, r, CA 151.11 JT, 40°/ 285°, u, r, CLAY 151.25 JT, 45°/ 320°, u, r, CLAY 151.40 JT, 38°/ 290°, u, r, CLAY, trace Py and CA 152.07 VN, 20°/ 135°, u, r, CA, trace Mn 152.45 JT, 70°/ 320°, u, r, CA, trace CLAY 153.59 VN, 15°/ 322°, u, r, Py, trace CLAY and other sulphides 154.10 JT, 60°/ 200°, u, r, CA, trace CLAY 154.52 JT, 68°/ 110°, u, r, CA 154.58 JT, 70°/ 300°, u, r, CA 154.61 JT, 60°/ 160°, u, r, CA 154.93 VN, 40°/ 240°, u, r, CA 155.15 JT, 12°/ 320°, u, sl, CLAY, trace Py and other sulphides 155.40 JT, 55°/ -, u, r, CA, trace Py 155.67 JT, 81°/ -, u, r, CA 156.00 JT, 40°/ -, u, r, CA, trace Py 156.40 VN, 80°/ -, u, r, CA, unable to ori 156.91 JT, 55°/ 320°, u, r, CA, trace CLAY 156.93 JT, 65°/ 340°, u, r, CA, trace CLAY 157.20 JT, 50°/ 130°, u, r, CA 157.55 JT, 10°/ 300°, u, r, CA 158.25 - 158.45 SZ, 42°/ 280°, u, r, CLAY, trace gravel and sand sized fragments of andesite 158.45 VN, 30°/ 350°, u, r, CA WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; moderately strong; pyrite disseminated; non magnetic; frequent randomly orientated calcite veins (2-6 mm) with pale grey alteration halos (continued from layer starting at 148.0m ) TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 94 TCR: 100 RQD: 100 TCR: 100 RQD: 99 TCR: 100 RQD: 100 TCR: 93 RQD: 100 PQTT PQTT PQTT PQTT PQTT PQTT PQTT PQTT SW Sample / Test 150 151 152 153 154 155 156 157 158 159 160 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) 151 152 153 154 155 156 157 158 159 RL (m) 153 152 151 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 : 16 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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