Supporting Technical Assessments

| Introduction | WNP – Air Discharge Assessment - Wharekirauponga Underground Mine -t| 4397169-66885702-23 | |10 Practice Guide for Assessing Discharges to Air from Industry: and “Good Practice Guide for Assessing and Managing Dust”. This report contains the following information: ● A brief summary of the proposal, where it relates to discharges to air ● A description of the nature of the discharges to air resulting from the proposed activities ● A description of the receiving environment in terms of the potential influences on the environmental effects of the emissions to air from the site ● A description of air quality standards and guidelines ● A description of air discharge sources and mitigation ● A description of the assessment methodology ● An assessment of the potential effects of the proposal on air quality ● Proposed mitigation and monitoring ● A summary of conclusions and findings of the investigation. 1.5 Limitations This report has been prepared by Beca for Oceana Gold (New Zealand) Limited (OGNZL). Beca has relied upon the information provided by OGNZL in completing this document. Unless otherwise stated, Beca has not sought to independently verify this information as provided. This report is therefore based upon the accuracy and completeness of the information provided and Beca cannot be held responsible for any misrepresentations, incompleteness, or inaccuracies provided within that information. Should any new or additional information become available, this report will need to be reviewed accordingly.

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