GHD | Oceana Gold (New Zealand) Limited | 12537997 | Gladstone Pit TSF 5 The opinions, conclusions and any recommendations in this report are based on assumptions made by GHD described in this report. GHD disclaims liability arising from any of the assumptions being incorrect. If the GHD document containing the disclaimer is to be included in another document, the entirety of GHD’s report must be used (including the disclaimers contained herein), as opposed to reproductions or inclusions solely of sections of GHD’s report. GHD has prepared this report on the basis of information provided by Oceana Gold (New Zealand) Limited and others who provided information to GHD (including Government authorities), which GHD has not independently verified or checked beyond the agreed scope of work. GHD does not accept liability in connection with such unverified information, including errors and omissions in the report which were caused by errors or omissions in that information. 1.5 Acronyms The following is a list of acronyms used throughout the report. Acronym Definition AEP Annual Exceedance Probability ANCOLD Australian National Committee on Large Dams CU Consolidated Undrained EGL Engineering Geology Limited EMP Emergency Management Plan FoS Factor of Safety GISTM Global Industry Standard on Tailings Management GOP Gladstone Open Pit ICOLD International Committee on Large Dams LoMP Life of Mine Plan MOP Martha Open Pit MUG Martha Underground Mine NAF Non-Acid Forming NRS Northern Rock Stack NZSOLD New Zealand Society on Large Dams OBE Operating Basis Earthquake OGNZL Oceana Gold New Zealand Limited OMS Operations, Maintenance and Surveillance PAF Potentially-Acid Forming
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