Supporting Technical Assessments

FINAL 240.43 JT, 50°/ 280°, u, r, CN 240.48 JT, 35°/ 65°, u, r, Py 240.62 JT, 56°/ 340°, u, r, CA 240.93 JT, 58°/ 280°, u, r, CN 240.94 JT, 58°/ 280°, u, r, CN 241.08 JT, 50°/ 330°, u, r, CA, trace CLAY 241.47 JT, 48°/ 330°, st, r, Py 241.59 JT, 50°/ 320°, u, r, CA, trace CLAY 241.66 JT, 45°/ 330°, u, r, CA, trace Py 241.87 - 241.89 SS, 50°/ 310°, st, r, CA, trace CLAY 242.13 JT, 35°/ 70°, u, r, CA, trace Py 242.19 VN, 15°/ 80°, u, r, CA, gravel fragments of andesite 242.34 VN, 40°/ 50°, u, r, CA, trace Py 242.41 - 242.42 VN, 50°/ 50°, u, r, CA, trace Py 242.63 JT, 58°/ 330°, u, r, CA 242.66 VN, 35°/ 50°, u, r, CA 242.82 VN, 18°/ 320°, u, r, CA 243.60 VN, 80°/ -, u, r, CA 243.74 VN, 60°/ -, u, r, CA 243.82 JT, 40°/ -, u, r, CA 243.90 VN, 40°/ -, u, r, CA 243.96 JT, 70°/ -, u, r, CA, trace CLAY 244.22 JT, 50°/ -, u, r, CA 245.26 VN, 60°/ -, u, r, CA 245.90 VN, 15°/ 300°, u, r, CA, trace Py 246.20 VN, 25°/ 30°, u, r, CA, trace Py 246.43 JT, 65°/ 320°, u, r, CA 246.70 JT, 30°/ 240°, u, r, CA 247.10 JT, 75°/ 330°, u, r, CA 247.22 JT, 50°/ 220°, u, r, CA, trace Py 247.40 - 247.50 SS, 45°/ 220°, u, r, CLAY, trace CA and Py 247.66 VN, 25°/ 220°, u, r, CA, trace QZ and Py 248.05 JT, 50°/ 220°, u, r, CA 248.26 JT, 50°/ 220°, u, r, CA, trace Py 248.44 JT, 40°/ 100°, u, r, CA, trace Py 248.80 JT, 80°/ 300°, u, r, CA 248.86 JT, 40°/ 60°, u, r, CA 249.70 VN, 20°/ 300°, u, r, CA 249.80 VN, 15°/ 310°, u, r, CA, WAIPUPU FORMATION Slightly weathered; grey; porphyritic ANDESITE; strong; pyrite disseminated; non magnetic; some pale grey clay alteration halos around defects that are weak to moderately strong (continued from layer starting at 237.3m ) TCR: 100 RQD: 92 TCR: 100 RQD: 89 TCR: 100 RQD: 85 TCR: 100 RQD: 100 TCR: 100 RQD: 100 TCR: 100 RQD: 96 TCR: 100 RQD: 100 PQTT PQTT PQTT PQTT PQTT PQTT PQTT SW Sample / Test 240 241 242 243 244 245 246 247 248 249 250 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) 241 242 243 244 245 246 247 248 249 RL (m) 122 121 120 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 : 25 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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