Supporting Technical Assessments

GHD | Oceana Gold (New Zealand) Ltd | 12552081 | Waihi North 149 GHD, 2022a. Waihi North Project Water Management Studies (WAI-985-000-REP-LC-0011_RevE.1). Prepared for Oceana Gold (New Zealand) Limited. 1 June 2022. GHD, 2022b. Geochemical Assessment Wharekirauponga Underground Mine (WAI-985-000-REP-LC0013_RevD.1). Prepared for Oceana Gold (New Zealand) Limited. 31 May 2022. GHD, 2022c. Gladstone Pit TSF Design Report (WAI-985-000-REP-LC-0010_RevE). Prepared for Oceana Gold (New Zealand) Limited. 30 May 2022. GHD, 2022d. Gladstone Wetland Groundwater Assessment Summary Technical Memorandum. Rev B. 1 March 2022. GHD, 2022e. Mataura Wetland Assessment Technical Memorandum. Rev B. 28 March 2022. GNS, 1996. Geology of the Waihi Area. Geology by Brathwaite, R. L. and Christie, A. B. Institute of Geological Nuclear Sciences Limited, Lower Hutt, New Zealand. Golder/WSP, 2022a. Oceana Gold Waihi North Project – Wharekirauponga Underground Mine - Willows Rock Stack and Surface Facilities Geotechnical Assessment (WAI-985-000-REP-LC-0037_RevB). March 2022. Golder/WSP, 2022b. Oceana Gold Waihi North Project Geotechnical Assessment Underground Mine and Tunnels. (WAI-985-000-REP-LC-0016_RevE.1). May 2022. GWS, 2018a. Project Martha – Assessment of Groundwater Effects. Reported prepared for OGNZL, dated 20 April 2018. GWS, 2018b. Subject: Black Hill Orchards Bore Pumping Test. Technical memorandum prepared for OGNZL, dated 5 April 2018. GWS, 2019. Existing TSF Performance. Document prepared for OGNZL 30 January 2019. GWS, 2020. Existing TSF Performance. Document prepared for OGNZL 12 March 2020. GWS, 2022a. Wharekirauponga Deposit. Assessment of Dewatering Effects. Prepared for Oceana Gold (New Zealand) Limited. (WAI-985-REP-LC-0030). 6 June 2022. GWS, 2022b. Waihi North Project. Assessment of Groundwater Effects – Tunnel Elements. Prepared for Oceana Gold (New Zealand) Limited. (WAI-985-000-REP-LC-0040_RevA.4). 6 June 2022. Ling, L., 2003. The Groundwater Regime of the Waihi Basin, North Island, New Zealand. Thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy in Geology. August 2003. Mitchell Daysh Limited, 2022. Waihi North Project – Assessment of Environmental Effects. NES-DW, 2021. Resource Management (National Environmental Standards for Sources of Human Drinking Water) Regulations 2007 (SR 2007/396) (updated 15 November 2021). NIWA, 2019. Climate data obtained from Waihi, Station Agent No. 1550. NIWA, 2022. Our Future Climate New Zealand National Maps. https://ofcnz.niwa.co.nz/#/nationalMaps [Accessed June 2022]. OGNZL, 2016. Tailings Storage Facility Annual Monitoring Report – Part C Underdrainage. April 2015 – March 2016. Document Reference WAI-200-REP-004-01. OGNZL, 2017. Summary Report on Sterilization Drill- Hole GT020 (Proposed TSF3 Area). File name “TSRF3_Maps and Section_14Aug2017 for EngGeol.PDF”. Provided by OGNZL to GHD via email on 25/11/2017. OGNZL, 2018. Project Martha – Applications for Resource Consents and Assessment of Environmental Effects. Document dated 25 May 2018.

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