NZD/AUD FX rate for interim dividend

The foreign exchange rate used for Mercury’s FY2025 interim dividend paid to Australian investors in Australian Dollars (NZD/AUD) has been set at 0.9128. The dividend will be paid on 1 April 2025. Attached is an amended ASX Appendix 3A.1 Notification of Dividend/Distribution released to the ASX. ENDS Howard Thomas General Counsel and Company Secretary Mercury NZ Limited For investor relations queries, please contact: Paul Ruediger Head of Business Performance & Investor Relations 027 517 3470 investor@mercury.co.nz For media inquiries, please contact: Shannon Goldstone Reputation and Social Impact Lead 027 210 5337 mercurycommunications@mercury.co.nz