Executive leadership team change

Mercury’s Chief Operating Officer - Generation, Kevin Taylor, has advised he intends to retire and will leave the company at the end of the year. Chief Executive Stew Hamilton said Mr Taylor had made an outstanding and valuable contribution to Mercury's business since joining in 2025. “Kevin has brought deep operational and safety leadership experience to Mercury, and has strengthened the way we operate and maintain our generation assets. We thank him for his positive impact on the Mercury team and our operations, and we wish him the very best for the future.” ENDS Howard Thomas General Counsel and Company Secretary Mercury NZ Limited For investor relations queries, please contact: Paul Ruediger Investor Relations 027 517 3470 investor@mercury.co.nz For media inquiries, please contact: Catherine Morab Communications 09 282 1158 mercurycommunications@mercury.co.nz