Supporting Technical Assessments

Report to OceanaGold Waihi North Project Blasting and Vibration Assessment Prepared By: Heilig & Partners Pty. Ltd. June, 2022 Distribution List: Heilig & Partners Pty Ltd P.O. Box 1176 OceanaGold : 1 Copy Mount Ommaney. QLD 4074 Telephone: +61 7 3715 7599 Brisbane Office : 1 Copy Facsimile: +61 7 3715 7588 Email: [email protected] Project Details: Project Number : HP2006-2 Date Completed : June 2022 File Name : WAI-985-000-REP-LC-0018_Rev 0 Date Saved : 21/06/2022 5:55:00 PM This document has been prepared for the OceanaGold WNP. Neither this report nor any part, including text, diagrams and equations may be used, reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, recording, or otherwise, for other than WNP without prior written permission from Heilig & Partners Pty Ltd. WAI-985-000-REP-LC-0018_Rev 0 TECHNICAL REPORT WAIHI NORTH PROJECT - VIBRATION PERFORMANCE ASSESSMENT GENERAL AREA 000 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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