Capital Change Notice

Attached is a Capital Change Notice in respect of the issue of Performance Share Rights under the Mercury NZ Limited – Share Rights Plan Rules in connection with the FY26 Short Term Incentive Plan. 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