Supporting Technical Assessments

FINAL and gravel sized fragments of host rock 260.13 VN, 45°/ 280°, u, r, CA, trace QZ 260.18 JT, 85°/ 120°, st, sm, CA, trace CLAY 260.60 JT, 50°/ 100°, st, sm, CA 260.85 JT, 58°/ 345°, u, r, CA 261.04 JT, 80°/ 350°, u, r, CN 262.38 JT, 80°/ 320°, u, r, CN 263.05 - 263.09 SS, 40°/ -, u, sl, CLAY, trace sand and gravel sized fragments 263.80 - 263.90 SS, 60°/ -, st, r, CA, hydrothermal brecciation 264.35 - 264.60 VN, 78°/ -, u, r, CA, hydrothermal brecciation 265.50 JT, 49°/ 280°, u, r, CA 266.40 VN, 33°/ 90°, u, r, Py, trace other sulphides 266.75 JT, 65°/ 240°, u, r, CA, trace Py 267.00 JT, 55°/ 275°, u, r, CA, trace Py 267.19 JT, 65°/ 240°, u, r, CN 267.70 VN, 40°/ -, u, r, CLAY, closed, sand to fine grained angular rock fragments (dyke) 269.21 VN, 32°/ -, u, r, Py 269.38 JT, 81°/ -, u, sl, CLAY WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic; some pale grey clay alteration halos around defects that are weak to moderately strong (continued from layer starting at 237.3m ) Slightly weathered; dark grey; porphyritic ANDESITE; moderately strong; intense hydrothermal veining of calcite through ground mass; some clay altered phenocrysts; trace disseminated pyrite Slightly weathered; grey; porphyritic ANDESITE; moderately strong; pyrite disseminated; non magnetic; some pale grey clay alteration halos around defects that are weak CORE LOSS 0.2m Slightly weathered; grey; porphyritic ANDESITE; moderately strong; pyrite disseminated; non magnetic; some pale grey clay alteration halos around defects that are weak to moderately strong TCR: 100 RQD: 97 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 87 RQD: 100 TCR: 100 RQD: 100 263.4 265.7 268.3 268.5 PQTT PQTT PQTT PQTT PQTT PQTT PQTT SW Sample / Test 260 261 262 263 264 265 266 267 268 269 270 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) 261 262 263 264 265 266 267 268 269 RL (m) 116 115 114 113 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 : 27 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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