Supporting Technical Assessments

FINAL 440.27 JT, 59°/ 98°, u, r, CN 440.46 VN, / -, CA, trace QZ 441.00 JT, 62°/ 80°, u, r, CLAY 441.90 JT, 80°/ 152°, u, r, CN 442.27 JT, 64°/ 20°, u, sl, CLAY 442.60 JT, 60°/ 155°, u, r, CLAY 443.05 JT, 50°/ -, u, sl, CLAY 443.35 JT, 15°/ -, u, sl, CLAY 443.75 JT, 45°/ -, u, r, CLAY 444.00 JT, 57°/ -, u, r, CLAY 444.20 JT, 55°/ -, u, r, CLAY 444.35 JT, 28°/ -, u, r, CA, trace CLAY 445.25 JT, 22°/ -, u, r, CA, trace CLAY 445.97 VN, 28°/ 210°, u, r, CA 446.90 JT, 12°/ 270°, u, r, CLAY 447.16 JT, 20°/ 260°, u, sl, CLAY 447.25 VN, 35°/ 220°, u, r, CA 447.31 VN, 30°/ 260°, u, r, CA 447.40 JT, 55°/ 280°, u, sl, CLAY 448.49 JT, 86°/ 30°, u, sm, CN, trace Py WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE moderately strong; pyrite disseminated; non magnetic (continued from layer starting at 431.9m ) Slightly weathered; pale grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 95 TCR: 100 RQD: 98 442.8 HQTT HQTT HQTT HQTT SW Sample / Test 440 441 442 443 444 445 446 447 448 449 450 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) 441 442 443 444 445 446 447 448 449 RL (m) 54 53 52 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 : 45 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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