Supporting Technical Assessments

FINAL 521.43 JT, 55°/ 140°, u, r, CA 521.53 JT, 50°/ 135°, u, r, CN 521.85 JT, 54°/ 80°, u, r, CLAY 522.14 JT, 61°/ 85°, u, r, CLAY 522.22 VN, 20°/ 310°, u, r, CA, closed, trace Py 523.00 JT, 40°/ 115°, u, r, CA, trace Py 523.45 JT, 41°/ 110°, u, sl, CA 523.90 JT, 60°/ -, u, sm, CN 524.03 JT, 55°/ -, u, sm, CN 524.09 JT, 40°/ -, u, sm, CN 524.28 JT, 50°/ -, st, r, CA 524.40 JT, 50°/ -, u, sm, CN 524.87 VN, 38°/ -, u, Py, closed, trace CA 525.26 JT, 65°/ -, u, sm, CN 525.50 VN, 12°/ -, u, CA, closed, trace Py 525.76 JT, 65°/ -, u, sm, CN 526.58 JT, 30°/ -, u, r, CLAY 526.63 JT, 25°/ -, u, sl, CLAY 527.47 JT, 55°/ 355°, u, r, CA, trace Py 528.10 JT, 25°/ 310°, st, r, CA 528.78 JT, 55°/ 100°, u, r, Py 529.53 JT, 80°/ 210°, u, r, CN 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 517.2m ) TCR: 100 RQD: 100 TCR: 100 RQD: 97 TCR: 100 RQD: 96 TCR: 100 RQD: 100 HQTT HQTT HQTT HQTT SW Sample / Test 520 521 522 523 524 525 526 527 528 529 530 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) 521 522 523 524 525 526 527 528 529 RL (m) 27 26 25 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 : 53 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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