Supporting Technical Assessments

REPORT Hazardous Substances Technical Assessment Waihi North Project - Waihi Processing Plant, Water Treatment Plant and Development Site Prepared for Oceana Gold (New Zealand) Limited Prepared by Tonkin & Taylor Ltd Date June 2022 Job Number 1015212.1000 vRev0 This document has been produced for New Zealand consenting purposes only. Information contained herein must not be relied on for investment purposes.

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