Investor Day 2025

Mercury is hosting its Investor Day 2025 in Rotorua today from 10:00am NZST. The presentation materials are attached. A live stream of the day can be accessed at the following link: https://youtube.com/live/uM66ptn70dY?feature=share 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