Supporting Technical Assessments

Oceana Gold Waihi North Project Waihi North Project Geochemical Assessment – Geochemistry of Tailings and Overburden, Treatment and Mitigation Revision 0 – 17-Jun-2022 Prepared for – Oceana Gold (New Zealand) Limited – Co No.: 2274246 AECOM Quality Information Document Waihi North Project Geochemical Assessment Ref 60544823 Date 17-Jun-2022 Prepared by Emilie Eddington Reviewed by Ian Jenkins Revision History Rev Revision Date Details Authorised Name/Position Signature 9 07-Oct-2021 DRAFT for Client Review Ian Jenkins Technical Lead, Geochemistry 10 03-Nov-2021 Final draft Ian Jenkins Technical Lead, Geochemistry 11 27-May-2022 Final Ian Jenkins Technical Lead, Geochemistry 0 17-June-2022 Final Ian Jenkins Technical Lead, Geochemistry

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