Supporting Technical Assessments

FINAL 679.90 JT, 45°/ -, u, r, CN 680.25 JT, 50°/ -, u, r, CN 680.52 JT, 48°/ -, u, r, CA, trace CLAY 680.85 JT, 55°/ -, u, r, CLAY 681.35 JT, 43°/ -, u, sl, CLAY 682.90 JT, 40°/ 240°, u, sl, CLAY 682.95 VN, 42°/ 245°, u, r, CA, trace Py 683.42 JT, 34°/ 100°, u, sl, CLAY 684.70 JT, 35°/ 278°, u, sl, CLAY 684.83 JT, 30°/ 300°, u, sl, CLAY, trace CA 685.10 JT, 18°/ 283°, u, sl, CLAY, trace Py 685.55 JT, 29°/ 270°, u, sl, CLAY, trace Py 686.00 JT, 22°/ 345°, u, sl, CLAY 686.20 JT, 48°/ 275°, u, sl, CLAY 686.51 JT, 65°/ 335°, u, r, CLAY 686.60 JT, 20°/ 275°, u, r, CA 686.70 VN, 32°/ 95°, u, r, CA, closed 687.22 JT, 62°/ 348°, u, r, CLAY 687.47 VN, 33°/ 270°, u, r, CA, closed 687.90 JT, 33°/ 260°, u, sl, CLAY, trace CA 688.80 JT, 50°/ 140°, st, sl, CLAY 689.27 JT, 50°/ 180°, u, r, CA 689.50 JT, 55°/ 190°, u, r, CN 689.70 JT, 56°/ 165°, u, r, CLAY WAIPUPU FORMATION Slightly weathered; pale grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic (continued from layer starting at 666.3m ) Slightly weathered; pale grey; clay altered ANDESITE; weak; pyrite disseminated; non magnetic TCR: 100 RQD: 100 TCR: 100 RQD: 98 TCR: 100 RQD: 97 TCR: 100 RQD: 100 681.2 HQTT HQTT HQTT HQTT SW Sample / Test 680 681 682 683 684 685 686 687 688 689 690 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) 681 682 683 684 685 686 687 688 689 RL (m) -28 -29 -30 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 : 69 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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