Supporting Technical Assessments

FINAL 552.51 JT, 85°/ -, u, r, CN, trace Py 552.70 JT, 62°/ -, u, sm, CN 552.87 VN, 10°/ -, u, r, CA, closed 553.04 JT, 65°/ -, st, sm, CN, trace Py 555.25 JT, 63°/ -, u, r, CN 556.34 JT, 40°/ -, u, r, CA, trace CLAY 556.65 JT, 60°/ -, u, r, CN, trace Py 557.19 JT, 50°/ -, u, r, CLAY 557.58 JT, 55°/ -, u, r, CLAY, trace CA 557.85 JT, 30°/ -, u, r, CLAY 558.25 JT, 19°/ -, u, r, CLAY 558.50 JT, 45°/ -, u, sm, CLAY 558.67 - 558.69 SS, 45°/ -, u, sl, CLAY, trace gravel fragments 558.85 JT, 48°/ -, u, r, CLAY 559.46 JT, 39°/ -, u, sl, CLAY 559.60 JT, 50°/ -, u, r, CLAY WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; some dark grey halos around defects; rare gravel to boulder sized inclusion inclusions of strong fine grained andesite (continued from layer starting at 546.8m ) Slightly weathered; pale grey ANDESITE; moderately strong; some clay alteration at defect boundaries; pyrite disseminated; non magnetic 556.30 - 556.60 drilling disturbance TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 100 556.3 HQTT HQTT HQTT HQTT HQTT SW Sample / Test 550 551 552 553 554 555 556 557 558 559 560 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) 551 552 553 554 555 556 557 558 559 RL (m) 16 15 14 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 : 56 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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