Supporting Technical Assessments

3 039.678 2 950 2 900 2 850 2 800 2 750 2 700 2 650 2 600 2 550 2 500 2 450 2 400 2 350 2 300 2 250 2 200 3 000 397400 mE 397600 mE 397800 mE 398000 mE 398200 mE 398400 mE 398600 mE 398800 mE 399000 mE 399200 mE 399400 mE 399600 mE Stockpile Ignimbrite Collection Pond S5 Crest RL177.25 Southern Uphill Diversion Drain Northern Uphill Diversion Drain Northern Stockpile Station RL153.5 Loadout Baxter Road Pond Collection Northern Road Haul Eastern STORAGE 1A Ohinemuri River STORAGE 2 Property Boundary Workshop Area Collection Pond West E B Topsoil Stockpile E Topsoil Stockpile B 643200 mN 643000 mN 642800 mN 642600 mN 642400 mN 642200 mN 642000 mN 641800 mN 641600 mN 641400 mN 641200 mN 641000 mN 640800 mN 640600 mN Northern Perimeter Road Southern Ruahorehore Stream Collection Pond S4 F Stockpile F 399600 mE 399400 mE 399200 mE 399000 mE 398800 mE 398600 mE 398400 mE 640400 mN 640200 mN 398200 mE Topsoil Perimeter Road 397400 mE 397600 mE 397800 mE 398000 mE Pond S3 Collection Pond S1 Collection PAF Stockpiles Topsoil Stockpiles LEGEND F RL120 RL130 RL140 RL152 RL120 RL130 RL140 RL152 Northern Haul Road Western Haul Road Collection/Siltponds NAF Stockpiles RL170 RL171 RL172 RL173 RL174 RL175 RL176 RL177.25 RL169 RL168 RL159 RL158 RL160 RL161 RL162 RL163 RL156 RL157 RL164 RL165 RL170 Indicative top of East Stockpile Final design to be confirmed Indicative top of Central Stockpile Final design to be confirmed WTP Processing Plant 8983-Fig3 Drawing No. Date: Drawn: Scale: Filename: June 2022 JL 1:10,000 (A3) 8983-Fig3.dwg OCEANA GOLD (NEW ZEALAND) LTD - WAIHI Northern Rock Stack Development Site General Layout Figure 3

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