ASX Appendix 3G and Appendix 3H

Attached are copies of ASX Appendix 3G and Appendix 3H released to the ASX today in connection with Mercury NZ Limited’s FY24–FY26 Long-Term Incentive grant. 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: Catherine Morab Communications 09 282 1158 mercurycommunications@mercury.co.nz