Supporting Technical Assessments

FINAL 400.00 JT, 60°/ 290°, u, r, CN 400.21 JT, 65°/ 50°, u, r, CN 400.29 JT, 30°/ 230°, u, r, CN 400.53 JT, 60°/ 170°, u, r, CN 401.28 JT, 50°/ -, u, r, CN 401.44 JT, 50°/ -, u, r, CN 401.52 JT, 70°/ -, u, r, CLAY, trace CA 402.40 JT, 60°/ -, u, r, CA 402.46 VN, 30°/ -, u, r, CA 402.80 VN, 50°/ -, u, r, CA 402.95 JT, 45°/ 300°, u, r, CA 403.17 VN, 18°/ 320°, u, r, CA 403.64 VN, 28°/ 340°, u, r, CA 403.90 VN, 20°/ 240°, u, r, CA 404.12 JT, 58°/ 290°, u, r, CA 404.40 JT, 60°/ 290°, u, r, CA, trace CLAY 404.45 JT, 35°/ 300°, u, r, CA, trace Py 404.67 JT, 25°/ 280°, u, r, CA 404.97 JT, 80°/ 160°, u, r, CA 405.00 JT, 70°/ 190°, u, r, CA 406.14 - 406.26 VN, 45°/ 190° 407.90 - 407.97 VN, 36°/ 345° 408.50 - 408.52 SS, 60°/ -, u, sl 409.57 JT, 35°/ 20°, u, r, CLAY 409.85 VN, 50°/ -, CA WAIPUPU FORMATION Slightly weathered; dark grey porphyritic ANDESITE; moderately strong; pyrite disseminated; sulphide rich (continued from layer starting at 394.5m ) Moderately weathered; grey; BRECCIA (andesite); weak; pyrite disseminated; non magnetic; matrix supported; poly-clastic; clasts of moderately strong to strong andesite and chert TCR: 100 RQD: 93 TCR: 100 RQD: 100 TCR: 100 RQD: 97 TCR: 100 RQD: 100 405.8 HQTT HQTT HQTT HQTT SW MW Sample / Test 400 401 402 403 404 405 406 407 408 409 410 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) 401 402 403 404 405 406 407 408 409 RL (m) 68 67 66 65 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 : 41 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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