Supporting Technical Assessments

100 100 83 80 HQ Coring Push tube HQ Coring 86 21 9 W S ML CL ML TOPSOIL: SILT, with some fine to medium grained sand and clay, trace rootlets; dark brown. Soft, wet, low plasticity. SILT, with minor clay; brown, soft, wet, low plasticity. from 0.5m: with minor fine to medium sand. Silty CLAY; light brown with orange and white mottling. Soft, wet, high plasticity. from 1.05m: with some fine sand Fine to coarse sandy SILT, with minor clay; brown with grey and orange mottling, soft, wet, medium plasticity. from 1.65m: with some sand. White grey RHYOLITE CRYSTAL TUFF; extremely weak. Light grey with orange staining, fine to medium, RHYOLITE CRYSTAL TUFF, very weak, closely spaced bedding. from 3 m: extremely weak to very weak, breaks down fine to coarse Sand with some silt, Firm-hard, wet. Termination Depth = 6m Alluvium Homunga Rhyolite - Tuff 0.2 [] 0.7 [] 1.3 [] 2.2 [] 6.0 [] -Push tube at 2.0m weakness set from 2.95m Crushed zone, subhorizontal, undulating, smooth 3.17-,Joint, very steeply inclined, undulating, rough, very narrow 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.: AP08 JM AS LP BOREHOLE with Piezo LOG Commenced: 30-May-17 Completed: 30-May-17 Contractor: Perry Geotech Datum: Mine (1000 m) Total Depth: 6.0m Sheet 1 of 1 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 1 2 3 4 5 6 7 8 9 10 -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 1 2 3 4 5 6 7 8 9 10 96 Coordinates: Refer to attached Table Elevation: Refer to attached Table Ash TS

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