Supporting Technical Assessments

FINAL 669.95 JT, 51°/ -, u, r, CLAY 670.29 JT, 62°/ 245°, u, sl, CLAY, trace Py 670.95 JT, 60°/ 50°, u, r, CN 671.10 JT, 45°/ 160°, u, r, CLAY, trace CA 671.35 JT, 50°/ 80°, u, r, CN, trace CLAY 671.75 JT, 55°/ 300°, u, r, CLAY 673.46 JT, 70°/ 0°, st, r, CN 674.34 JT, 25°/ 260°, u, r, CLAY 674.82 JT, 80°/ 140°, u, r, CLAY 675.20 JT, 80°/ -, u, r, CLAY 675.66 JT, 70°/ -, u, r, CLAY 677.57 JT, 50°/ -, u, r, CA 677.59 VN, 80°/ -, u, r, CLAY 677.89 JT, 50°/ -, u, r, CA 678.47 JT, 40°/ -, u, sl, CLAY 679.34 VN, 60°/ -, u, r, CA, closed 679.45 JT, 60°/ -, st, r, CA 679.61 JT, 45°/ -, u, r, CA 679.78 JT, 58°/ -, u, sm, CLAY WAIPUPU FORMATION Slightly weathered; pale grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic (continued from layer starting at 666.3m ) TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 99 TCR: 100 RQD: 100 HQTT HQTT HQTT HQTT SW Sample / Test 670 671 672 673 674 675 676 677 678 679 680 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) 671 672 673 674 675 676 677 678 679 RL (m) -25 -26 -27 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 : 68 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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