Supporting Technical Assessments

110 100 90 80 70 60 50 30 120 110 110 110 170 160 150 140 130 120 160 150 140 120 110 100 110 100 120 110 110 100 100 150 130 120 110 100 150 100 WAIHI NORTH Proposed Northern Rock Stack (NRS) and Process Plant Date: 29 April 2022 | Revision: 0 Plan prepared for Oceana Gold by Boffa Miskell Limited Project Manager: [email protected] | Drawn: BMc | Checked: RGi www.boffamiskell.co.nz Fi le Ref: BM210482_13_A3L_NRS_Proposed.mxd 0 200 m 1:4,500 @ A3 Projection: NZGD 2000 New Zealand Transverse Mercator Data Sources: Proposed Infrastructure sourced from Oceana Gold LIDAR sourced from WRC This plan has been prepared by Boffa Miskell Limited on the specific instructions of our Client. It is solely for our Client's use in accordance with the agreed scope of work. Any use or reliance by a third party is at that party's own risk. Where information has been supplied by the Client or obtained from other external sources, it has been assumed that it is accurate. No liability or responsibility is accepted by Boffa Miskell Limited for any errors or omissions to the extent that they arise from inaccurate information provided by the Client or any external source. Tunnel Portal Proposed Tunnel Envelope (Underground) Proposed Pit Proposed Fill - Northen Rock Stack Perimiter Road and Diversion Drain Temporary Stockpiles Existing/Proposed Contours (2m) LEGEND Figure 26

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