FY26 interim results announcement date and webcast details

Mercury’s interim results for the six months ended 31 December 2025 will be announced on Tuesday 24 February 2026. Mercury’s Chief Executive, Stewart Hamilton, and Chief Financial Officer, Richard Hopkins, will give a presentation on the company’s financial, operational and strategic performance via a live webcast on the day at 11.00am. All shareholders are invited to listen to the live webcast on the FY26 interim results. >DATE: Tuesday, 24 February 2026 >TIME: 11:00 am NZT (1 hour) >LIVE WEBCAST: https://events.teams.microsoft.com/event/6f351ab4-48f9-47d2-9088-ec04e016ceb7@864e4889-04a2-416e-9f88-ca5ce1c6c1b7 Attendees may register for the webcast at the above link. At registration, attendees will need to fill out some basic information including name, email address, organisation name, and job title. After registering, attendees will receive a confirmation email containing information about joining the webcast. At the end of the formal presentation Mercury will invite verbal questions from attendees. Attendees will be required to raise their (virtual) hand if they wish to ask a question. This will place them in a queue. When invited to ask your question, you will need to unmute your microphone. There will be no chat available for written questions. We will endeavour to address all questions during the webinar, subject to time constraints. 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 Reputation and Social Impact Lead 09 2821158 mercurycommunications@mercury.co.nz