Supporting Technical Assessments

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. File Ref: BM210482C_Waihi_North_Graphic_Supplement_FINAL.indd WAIHI NORTH Date: May 2022 | Revision: 4 Project Manager: [email protected] | Drawn: BMc | Checked: RGi Plan prepared for Oceana Gold by Boffa Miskell Limited www.boffamiskell.co.nz Figure 15 Proposed Northern Rock Stack and Process Plant 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 Proposed Northern Rock Stack and Process l t Date: 29 April 2022 | Revision: 0 l l f i ll i i Project Manager: rhys.girvan bof a iskell.co.nz | Drawn: B c i . ff i ll. . 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 l has be n prepared by Boffa Miskell Limited on the specific instructions f 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 esponsibility is accep ed by Boffa Mi kell Limited for any errors or omissions t th 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 Figu 2 0 8 7 3 0 1 2 e o h v a e n a l im h r ns ur s t' c h r s o n ance by a t ird p i ' wn risk. Where ed e ot l s t it ac . li il y e k ed r s t t y n a or d i NRS WUG Portal Process Plant Upgrade Topsoil Stockpiles Magazine Workshop Collection Pond Water Treatment Plant Expansion MUG Portal Conveyor Upgrades LPG Tanks Substation / Switchroom

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