Supporting Technical Assessments

i Contents Waihi North Project Assessment of Groundwater Effects - Wharekirauponga Deposit 43 Moresby Ave Waihi 3610 New Zealand Report Prepared for: OceanaGold Corporation 14th June 2022 Document Reference: WAI-985-000-REP-LC-0030_Final Rev 0 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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