Supporting Technical Assessments

42 37 85 38 100 79 100 HQ Coring MW MWSW HWCW 0 35 0 0 65 62 0 HQ Highly weathered, light grey brown, fine to medium grained, RHYOLITE FLOW, weak-very weak. Moderately -widely spaced banding. from 21m: becomes moderately weathered to slighly weathered, defects closely spaced. from 24.36m: becomes highly weathered to completely weathered, weak to very weak. from 27m: orange brown staining. Termination Depth = 27.25m Homunga Rhyolite - Lava 27.3 [] -at 21m, bands of soft material causing lower recovery - weakness/joint set 1 becomes closely spaced from 21.0 m -vein at 21.24-21.52m, very steeply inclined, undulating, smooth, narrow, white mineralization infill -NOTE: slightly reducing circulation since 15m -Crushed zone at 22.92-23.0m, fine to coarse gravel 23-23.1,JT, subvertical, smooth, undulating, very narrow-tight, Fe staining -Joint set 2 very closely spaced to closely spaced from 24.0 PO Box 6543 Auckland 1141 GHD Limited Project Quattro OceanaGold Ltd Waihi - TSF3 51/37083 Site Identification: Logged: Processed: Checked: Project: Client: Site: Job No.: AP07a JM AS LP BOREHOLE with Piezo LOG Commenced: 26-May-17 Completed: 26-May-17 Contractor: Perry Geotech Datum: Mine (1000 m) Total Depth: 27.3m Sheet 3 of 3 BOREHOLE LOG NZ ALT 5137083_NZ LIB_PROJECT QUATTRO - TSF3 LP COMPLETE DRAFT.GPJ NZ GINT DATA TEMPLATE VER 1.5.GDT 10/8/17 Piezometer Shear Vane: Drilling Method 21 22 23 24 25 26 27 28 29 30 -90 Comments: ROCK DESCRIPTION: Weathering, colour, fabric, ROCK NAME (Formation Name) W MS VS S Water Bore Diameter (mm): Inclination: VW ES Core Run / Recovery (%) 20 60 200 600 2000 SOIL DESCRIPTION: (Soil Code), Soil Name [minor MAJOR], colour, structure [zoning, defects, cementing], plasticity or grain size, secondary components, structure. (Geological Formation) / Defect Spacing (mm) RQD (%) Estimated Rock Strength EW Graphic Log Classification Support / Casing (m) tractor JD Tractor Rig Depth (m)/ [Elev.] Equipment: Weathering Consistency/ Relative Density Moisture Condition TESTS & SAMPLES / ROCK MASS DEFECTS: Depth, Type, Inclinations, Roughness, Texture, Aperture, Coating Geological Fm 21 22 23 24 25 26 27 28 29 30 96 Coordinates: Refer to attached Table Elevation: Refer to attached Table

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