Supporting Technical Assessments

FINAL 470.10 JT, 55°/ 100°, u, r, CA 470.15 JT, 50°/ 80°, u, r, CA 470.17 JT, 60°/ 10°, u, r, CA 470.47 VN, 20°/ 230°, u, Py, trace sulphides and CA 470.62 JT, 59°/ 30°, u, r, CA 470.79 JT, 78°/ 260°, u, r, CA 471.20 JT, 60°/ 322°, st, r, CN 471.28 JT, 40°/ 20°, u, r, CA 471.70 JT, 60°/ 295°, st, r, CLAY 472.03 JT, 62°/ 320°, u, r, CN 472.04 VN, 70°/ 320°, u, CA, closed 473.30 - 473.80 SZ, 30°/ -, u, r, CLAY, possible fault gouge; gravel sized fragments of weathered rock; trace CA 474.22 JT, 15°/ -, u, r, CA 474.72 VN, 55°/ -, u, CA, closed - trace Py 474.80 JT, 65°/ -, u, r, CN 477.03 JT, 50°/ 216°, u, r, CLAY 477.25 JT, 25°/ 190°, u, r, CA 477.44 JT, 71°/ 60°, st, sm, CLAY 479.05 JT, 65°/ -, u, r, CLAY 479.67 JT, 62°/ -, st, r, CLAY 479.80 JT, 80°/ -, st, r, CLAY WAIPUPU FORMATION Slightly weathered; pale grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic (continued from layer starting at 442.8m ) Moderately weathered; grey; porphyritic ANDESITE; moderately strong; pyrite disseminated; non magnetic TCR: 100 RQD: 92 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 472 HQTT HQTT HQTT HQTT HQTT SW MW Sample / Test 470 471 472 473 474 475 476 477 478 479 480 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) 471 472 473 474 475 476 477 478 479 RL (m) 44 43 42 41 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 : 48 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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