Supporting Technical Assessments

88 149 79 138 100 85 HQ Coring Push Tube HQ Coring MWSW RSCW 66 W W-S W W-S W VStSt St-F 'L' F St VSt S F-St VStSt F-St StVSt ML SW CI ML ML TOPSOIL: SILT, minor fine to medium sand; dark brown, very stiff to stiff, wet, non plastic, spongy, rootlets 0.15m: SILT, some fine to coarse sand, minor clay; brown, wet, stiff to firm, non plastic [residual soil] 0.3m: Moderately weathered to slightly weathered, pale greyish white BOULDER [VOLCANIC]; strong to very strong, moderately widely spaced defects Coarse SAND; brown, loose, wet to saturated, well graded CLAY, some silt, trace fine to medium sand; grey, firm, wet, medium to high plasticity. from 2.9m: reddish brown SILT, some clay, some fine to coarse sand; reddish brown, stiff, wet, low plasticity. SILT, some fine to coarse sand, minor trace clay; grey with pinkish red staining and reddish streaks, stiff, wet, non plastic from 4.4m: very stiff, wet to saturated from 5.3m: very stiff, wet, [residual soil weathering from parent rock] from 5.8m: soft, [residual soil weathering from parent rock] from 6.1m: firm to stiff, [residual soil weathering from parent rock] from 6.3m: very stiff to stiff [residual soil weathering from parent rock] from 6.6m: firm to stiff [residual soil weathering] from 8.5: grey, stiff to very stiff [residual soil weathering] Residual soil to completely weathered, grey with minor pink staining, mottled fabric [ANDESITE and/or DACITE]; extremely weak; SILT, some fine to coarse sand; white, black weathered phenocrysts (weathered) Termination Depth = 9m Weathered Volcanics Coromandel Volcanics 0.3 [] 2.0 [] 2.1 [] 3.0 [] 3.3 [] 4.4 [] 8.9 [] 9.0 [] -Note: 870 cm Rock material does not account for soil in 1.5m drill run recovery -*No PT taken due to rock @0.3mbgl -Joint @ 1.27m, steeply inclined, undulating, rough, narrow, weathering -Joint @ 1.35m, steeply inclined, undulating, rough, narrow, weathering -Joint @ 1.4m, gently to moderately inclined, undulating, rough, very narrow, Manganese and Iron Oxide -Joint @ 1.55m, subhorizontal, undulating to stepped, rough, very narrow to tight, Manganese and Iron Oxide -Joint @ 1.6m, sub-horizontal, undulating to stepped, smooth, very narrow to tight, Manganese and Iron Oxide -Joint @ 1.7m, moderately inclined, stepped, smooth, very narrow to narrow, weathering -Joint @ 1.8m, moderately inclined, stepped, smooth, very narrow, clay w. -Joint @ 1.9m2.0m, very steeply inclined to subvertical, smooth, very narrow, clay w. -at 2.0m coarse sand potential drilling residue from drilling strong to very strong -Push tube at 4.5m-5.0m 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.: GLD02 HB CDM/AS HB BOREHOLE with Piezo LOG Commenced: 15-Jun-16 Completed: 16-Jun-17 Contractor: Perry Geotech Datum: Total Depth: 9.0m Sheet 1 of 1 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 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) 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

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