Supporting Technical Assessments

EGL Ref: 9015 23 June 2022 Page 2 File: 2022.06.23 GOP TSF RC Peer Review Letter.docx Table 1: Documents Reviewed Item OGNZL Doc. ID GHD ID Date Title 1 - Rev A 12 March 2021 Gladstone Pit Pre-Feasibility Study Design Report 2 - Rev B 16 April 2021 Gladstone Pit Pre-Feasibility Study Design Report 3 - 12537997 – Rev A 11 June 2021 Gladstone Pit TSF - Consent Technical Report – Basis of Design - Oceana Gold Ltd - 11 June 2021 4 WAI-985000-REP-LC0010_RevB - 15 October 2021 Gladstone Pit TSF - Design Report - OceanaGold New Zealand Ltd 5 WAI-985000-REP-LC0010_RevC - 18 November 2021 Gladstone Pit TSF - Design Report - OceanaGold New Zealand Ltd - 18 November 2021 6 WAI-985000-REP-LC0010_RevD - 07 December 2021 Gladstone Pit TSF - Design Report - OceanaGold New Zealand Ltd - 07 December 2021 Table 2: Final document 7 WAI-985000-REP-LC0010_Rev0 - 17 June 2022 Gladstone Pit TSF - Design Report - OceanaGold New Zealand Ltd - 17 June 2022

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