Supporting Technical Assessments

FINAL 431.02 JT, 71°/ 80°, u, r, CA 431.63 JT, 70°/ 20°, u, r, CLAY 432.84 VN, 61°/ 5°, CA, trace Py 433.01 JT, 65°/ 300°, u, r, CN 433.24 VN, 8°/ 220°, u, r, CA 436.09 JT, 40°/ 195°, u, sl, CA 436.61 JT, 82°/ 340°, u, r, CN 437.68 VN, 12°/ -, u, r, CA 437.85 JT, 48°/ -, u, sl, CLAY 439.40 JT, 84°/ -, u, r, CN WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE moderately strong; pyrite disseminated; non magnetic (continued from layer starting at 427.8m ) Slightly weathered; fine ANDESITE; moderately strong; calcite veining; pyrite disseminated and at defect boundaries; fairly consistent orientation of veins 65/340 very closely spaced Slightly weathered; grey; porphyritic ANDESITE moderately strong; pyrite disseminated; non magnetic TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 431.55 431.92 HQTT HQTT HQTT HQTT SW Sample / Test 430 431 432 433 434 435 436 437 438 439 440 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) 431 432 433 434 435 436 437 438 439 RL (m) 57 56 55 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 : 44 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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