Supporting Technical Assessments

105 102 HQ Coring CWHW 57 HW from 31m: grey, weak to moderately strong from 32.6m: pale grey/ creamy whitish grey Termination Depth = 33m 30.0 [] 33.0 [] -Crushed zone at 29.9-30m, cobble, fine to coarse gravel, fine to coarse sand, silt, loose, poorly graded -Crushed zone at 30.8-30.9m, very fine gravel, fine to coarse sand, silt, sub angular clasts, poorly graded -Joint at 31.0m, very steeply inclined- subvertical, undulating to stepped, rough, smooth, very narrow- tight -Joint at 31.2, moderately inclined -Crushed zone at 31.3- 31.45m, cobble, fine to coarse gravel, fine to coarse sand, silt, angular- sub rounded clasts, poorly graded -Drill Break (DB) at 32.8m 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.: GLD01b HB AS HB BOREHOLE with Piezo LOG Commenced: 20-Jun-17 Completed: 20-Jun-17 Contractor: Perry Geotech Datum: Total Depth: 33.0m Sheet 4 of 4 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 31 32 33 34 35 36 37 38 39 40 -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 31 32 33 34 35 36 37 38 39 40 96 and 114

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