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 12 Proposed Gladstone Tailings 140 130 120 110 130 120 Prop sed Gladstone T ili Date: 28 October 2021 | Revision: 0 f roject Manager: rhys.girvan bof a iskel .co.nz | Dra n: B c f Fi le Ref: BM210482_17_A3L_Gladstone_Tai lings_Proposed.mxd 0 100 m 1:2,500 @ 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 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 ext rnal sources, it has been assumed that it is accurate. No liability or esponsibility is accep ed by Boffa Miskell Limited for any errors or omissions t th extent that they arise from inaccurate information provided by the Client or any external source. Proposed Pit Proposed Fill Existing/Proposed Contours (2m) LEGEND Fig 0 Alternative MUG Portal and In-Pit Crusher Union Hill Winner Hill GOP (Tailings) Process Plant

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