Supporting Technical Assessments

FINAL closed 659.86 JT, 70°/ 210°, u, r, CN 660.08 JT, 55°/ 140°, u, r, CA, trace CLAY 660.62 JT, 85°/ 90°, u, r, CLAY 661.17 JT, 85°/ -, u, r, CLAY 661.47 - 664.00 SZ, 18°/ 40°, u, r, CLAY, upper fault zone contact 664.00 25°/ 320°, u, r, CLAY, lower fault zone contact 664.49 JT, 62°/ 150°, st, r, CLAY 666.50 JT, 68°/ -, u, r, CN 666.82 JT, 38°/ -, st, r, CLAY 667.84 JT, 50°/ -, u, r, CA 668.30 JT, 33°/ -, u, r, CLAY 668.45 VN, 50°/ -, u, r, CA, closed 668.60 VN, 75°/ -, u, r, CA, closed 668.73 VN, 35°/ -, u, r, CA, closed 668.83 JT, 85°/ -, u, r, CN 669.08 JT, 32°/ -, u, r, CLAY 669.16 VN, 25°/ -, u, r, CA, closed 669.35 JT, 72°/ -, u, r, CN WAIPUPU FORMATION Slightly weathered; pale grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic (continued from layer starting at 653.1m ) Fault zone/structure: highly weathered; grey; clay altered; TUFF (andesite); weak; pyrite disseminated; poly-clastic; clast supported; pyrite disseminated CORE LOSS 1.5m Slightly weathered; pale grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic TCR: 100 RQD: 99 TCR: 100 RQD: 100 TCR: 40 RQD: 100 TCR: 100 RQD: 97 661.25 664.8 666.3 HQTT HQTT HQTT HQTT SW HW SW Sample / Test 660 661 662 663 664 665 666 667 668 669 670 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) 661 662 663 664 665 666 667 668 669 RL (m) -21 -22 -23 -24 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 : 67 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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