Supporting Technical Assessments

FINAL 140.00 JT, 30°/ 248°, u, sl, CLAY, trace Py, CA and other sulphides 140.23 JT, 62°/ 230°, u, r, CA 141.02 JT, 58°/ 226°, u, r, Py 141.13 VN, 35°/ 60°, u, r, Py, trace other sulphides 142.30 JT, 72°/ 65°, u, r, CA, trace Py 142.40 JT, 85°/ 75°, u, r, CA 143.33 VN, 50°/ 30°, u, r, Py, trace other sulphides 143.60 VN, 55°/ 0°, u, r, CA 143.75 VN, 22°/ 270°, u, r, CA 144.00 JT, 47°/ 335°, u, r, CA, trace CLAY 144.60 JT, 50°/ -, u, r, CLAY 146.20 JT, 30°/ -, u, r, CA, trace CLAY 146.42 JT, 40°/ -, u, r, CA, trace CLAY 148.04 JT, 40°/ 15°, u, sl, CLAY, trace Py 148.12 VN, 60°/ 330°, u, r, Py, trace other sulphides 149.55 JT, 65°/ 240°, u, r, CN WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic; frequent randomly orientated calcite veins (2-6 mm) calcite veins with pale grey alteration halos; some gravel to boulder sized inclusions of red (hematite altered) andesite (continued from layer starting at 131.1m ) Moderately weathered; grey; clay altered ANDESITE; moderately strong; pyrite disseminated; recovered partially as gravel sized fragments Slightly weathered; grey; porphyritic ANDESITE; moderately strong; pyrite disseminated; non magnetic; frequent randomly orientated calcite veins (2-6 mm) with pale grey alteration halos TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 95 TCR: 100 RQD: 100 144.5 148 PQTT PQTT PQTT PQTT PQTT PQTT PQTT SW MW SW Sample / Test 140 141 142 143 144 145 146 147 148 149 150 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) 141 142 143 144 145 146 147 148 149 RL (m) 157 156 155 154 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 : 15 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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