Supporting Technical Assessments

93 97 96 74 107 114 95 102 HQ Coring MW 76 53 51 69 109 57 86 102 from 10.5m: Moderately strong to weak from 11.6m: becomes brownish grey with light grey, white and brown staining and banding NOTE: from 12m, no circulation from 12m: weathered veins with white phenocrysts from 13.15m: becomes brownish grey DRILLERS NOTE: Additional core at 17 m likely due to shorter runs at 14 m which weren't all drilled at the 16 m run from 18.15 m: light grey banding Homunga Rhyolite - Lava 10.0 [] -11.04-11.39 Break set, very closely spaced, sub horizontal, stepped, rough, very narrow to tight -Joint at 11.38, sub horizontal, stepped, rough, very narrow, light brown, silt or clay in CIL (weathered minerals) -Joint at 11.55 as above but Steeply Inclined -Crushed zone at 11.68-12, fine to coarse grained gravel and minor cobbles -from 12 m break set, closely spaced, smooth, very narrow to narrow, stepped, smooth, light grey staining -Joint at 12.11, 12.6, gently inclined, very narrow, undualting to stepped, rough, Iron staining, and traces of clay -Crushed zone between 12.86-13 m: fine to coarse poorly-graded gravel, light grey -NOTE: Breaks from 13.15-14.53 =DB -Break/Weakness: 15.29: Sub horizontal, Undulating to Stepped, Rough 15.39: Very Narrow to Tight -DB at 15.87 -Joint at 16.0, gently inclined, undulating, rough, very narrow, Iron Staining, grey silt -DB at 16.2 -Joint at 16.5 -Joint at 16.55-16.9: Very steeply inclined, very narrow, undulating, smooth, associated DBs. Light brown, silt/clay infill -Joint at 16.95-17.57: Sub vertical, very Narrow, undulating, smooth, light brown, silt/clay -Joint at 17.14-17.57 as above -Crushed zone @17.3-17.57; likely round by drilling, fine to coarse gravel with minor cobbles -Hairline fractures (closed), clay infil 17.37-17.72 -Joint @ 17.9-18.15, 18.12-18.16: Sub vertical, narrow, undulating, smooth (closed), grey mineral infill -Hairline fractures 18.45-18.65: with trace infill -Joint @ 18.58-18.85: sub vertical, very narrow, to tight, undulating, smooth, light brown, silt/clay infill -Joint at 18.87-19.4 as above 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.: AP11a JM AS HB BOREHOLE with Piezo LOG Commenced: 06-Jun-17 Completed: 06-Jun-17 Contractor: Perry Geotech Datum: Mine (1000 m) Total Depth: 21.0m Sheet 2 of 3 BOREHOLE LOG NZ ALT 5137083_NZ LIB_PROJECT QUATTRO - TSF3 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 -Joint at 19.07: Steeply inclined to very steeply inclined, very narrow to tight 19.15 Undulating, smooth, trace light brown, silt/clay and Iron -Hairline fractures from 19.5-20.25 and 20.4-20.6 with silt clay infill -Weakness break 19.7, 20.17, 20.4 Gently Inclined,very narrow to tight Coordinates: Refer to attached Table Elevation: Refer to attached Table

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