Supporting Technical Assessments

101 95 102 101 89 100 111 95 HQ Coring RSCW CW from 10.6m: pink staining grey residual soil from 15.0m: grey Completely weathered, light brown with mottled weathered white phenocrysts, weak, CLAY, some silt, trace fine sand; high plasticity. Completely weathered, dark grey with mottled white weathered phenocrysts, very weak to weak, no defects present, too weathered to detect. Coromandel Volcanics 10.0 [] 19.1 [] PO Box 6543 Auckland 1141 GHD Limited Project Quattro OceanaGold Ltd Waihi- Gladstone 51/37083 Site Identification: Logged: Processed: Checked: Project: Client: Site: Job No.: GLD02a HB CDM/AS HB BOREHOLE with Piezo LOG Commenced: 15-Jun-16 Completed: 16-Jun-17 Contractor: Perry Geotech Datum: Total Depth: 30.0m Sheet 2 of 3 BOREHOLE LOG NZ ALT 5137083_NZ LIB_PROJECT QUATTRO_FVN AND GLD HB 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) 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

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