Supporting Technical Assessments

FINAL WHIRITOA ANDESITE Moderately weathered; grey; porphyritic ANDESITE; magnetic (possible bedrock or colluvium - unconfirmed) (continued from layer starting at 9.2m ) End of Hole @ 15m, Target Depth MW HQTT HQTT HQTT HQTT TCR: 100 TCR: 100 TCR: 107 TCR: 96 10 11 12 13 14 15 16 17 18 19 20 Geological Unit Material Description Instrumentation Installation Commenced: 8/09/2020 Easting: 2763689.493 Hole No. : WFBH004 Completed: 8/09/2020 Sheet : 2 of 2 Hole Length : 15 Project : WKP Exploration Tunnel - Ground Investigation Client : Oceana Gold Corporation / GWS / Golder Job Number: 12533958 Processed : HJ System: NZMG 1949 Northing: 6423889.712 Checked : JHS Datum: NZVD2016 Logged : HJ Site : Willows Farm, Waihi North, Scale @ A4 : 1:50 Method: SURVEY RL: 161.242 m Water level Notes and Comments: Refer to explanation sheets for abbreviation and symbols. Shear Vane values are corrected. Ground Water Level Time Date Reading Hole depth (mbgl) (mbgl) Equipment: Tractor Rig, (Rig 83) Orientation: Inclination: Vertical 08/09/20 12:00 2.06 5.3 08/09/20 14:00 2.26 7.8 08/09/20 17:00 2.2 15 23/09/20 11:10 6.84 6.2 End of Hole @ 15m Silt Pond Area, No SPT's undertaken due to faulty equipment No water return information Field soil descriptions have been adjusted to reflect lab test results were applicable Contractor: Alton Drilling Ltd Depth (m) 11 12 13 14 15 16 17 18 19 RL (m) 151 150 149 148 147 146 145 144 143 142 Graphic Report ID: GENERAL_LOG-BK1 || Project: WILLOWS FARM BHS.GPJ || Library: GHD - NZGD.GLB || Date: 10 May 2021 Weathering Flush Return (%) 25 50 75 Consistency / Relative Density Moisture condition Casing Method Result Sample Number / Type Estimated Strength (MPa) Defect Spacing (mm) EW VW W MS VS ES 20 60 200 600 2000 TCR SCR RQD (%)

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