Supporting Technical Assessments

93 97 100 87 100 75 95 42 HQ Coring HW MW 15 14 29 29 25 0 S 'L' 'L' SM SP HQ Silty fine to coarse SAND, with trace fine gravel; light grey brown. Loose. Light grey brown, fine to medium grained, RHYOLITE FROTH FLOW, weak. from 15m: weak to moderately strong from 16.15m: becomes very closely spaced with 12cm thick bands weathered to form defect/weakness planes Fine SAND, with some silt; light greyish brown, soft, loose, low plasticity (slightly dialatant) Highly weathered, light grey brown, fine to medium grained, RHYOLITE, FLOW weak-very weak. Moderately -widely spaced banding. from 17.74m: become purpleish grey, moderately weathered. from 19.64m: becomes moderately weathered. Homunga Rhyolite - Lava 12.2 [] 16.5 [] 17.3 [] -at 12.15m, banding/weakness set 1 continuous (subhorizontal planes at weakness) -Drilling ceased for weekend @ 16.5m -16.5-17.25m: soft patch believed to be from upwell Jointing at 17.79-18.0, subvertical, undulatingplanar, rough 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 2 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 11 12 13 14 15 16 17 18 19 20 -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 11 12 13 14 15 16 17 18 19 20 96 Coordinates: Refer to attached Table Elevation: Refer to attached Table

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