Supporting Technical Assessments

FINAL 50.04 JT, 52°/ 200°, u, r, CN, low confidence ori 50.20 JT, 30°/ 140°, u, r, CLAY 50.25 VN, 40°/ 320°, u, r, CA 50.45 VN, 60°/ 325°, u, r, CA 50.90 VN, 20°/ 220°, u, r, CA 51.30 VN, 35°/ -, u, r, CA 51.97 VN, 50°/ 60°, u, r, Py, trace sulphides 52.30 VN, 20°/ 270°, u, r, CA 52.45 VN, 65°/ 280°, u, r, CA 52.60 VN, 25°/ 190°, u, r, CA 52.90 VN, 65°/ 280°, u, r, CA 53.45 VN, 55°/ 40°, u, r, CA 54.10 VN, 60°/ 320°, u, r, CA 54.65 VN, 75°/ 120°, u, r, CA 55.66 JT, 62°/ 160°, pl, r, CA 56.04 JT, 80°/ 340°, pl, r, CA 56.35 VN, 30°/ 240°, u, r, CA 56.68 JT, 40°/ 330°, pl, r, CA 56.77 JT, 60°/ 110°, pl, r, CA 56.90 VN, 60°/ 260°, u, r, CA 58.46 JT, 70°/ 352°, pl, r, CN 59.00 JT, 70°/ 340°, u, r, CA 59.40 JT, 40°/ -, u, r, CA WAIPUPU FORMATION Moderately weathered; pale grey; clay altered ANDESITE; weak; disseminated pyrite; non magnetic (continued from layer starting at 45.6m ) Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic; frequent randomly orientated calcite veins (<2mm) 97 TCR: 100 RQD: 97 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 94 TCR: 100 RQD: 100 TCR: 100 RQD: 100 52 PQTT PQTT PQTT PQTT PQTT PQTT PQTT MW SW Sample / Test 50 51 52 53 54 55 56 57 58 59 60 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) 51 52 53 54 55 56 57 58 59 RL (m) 187 186 185 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 : 6 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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