BNZ notes – amendment to terms and conditions of Notes

Exchange announcement 19 September 2025 BNZ notes – amendment to terms and conditions of Notes Bank of New Zealand (BNZ) gives notice of amendments to the note deed poll dated 14 November 2013 (as most recently amended and restated on 2 August 2018 and amended on 31 May 2019) (Deed Poll) under which BNZ may issue notes (Notes) from time to time and to the final terms of outstanding series of Notes issued under the Deed Poll. BNZ currently has five series of Notes issued under the Deed Poll quoted on the NZX Debt Market (NZX ticker codes BNZ150, BNZ160, BNZ170, BNZ180 and BNZ190). BNZ has amended the definition of Business Day in the terms and conditions of the Notes and the Business Day Convention in the final terms to refer to New Zealand instead of Auckland and Wellington. The amendment to the Deed Poll applies to all Notes issued under the Deed Poll before, on or after the date of the amendment. BNZ has determined that the amendments are not materially prejudicial to the interests of holders of the Notes as a whole. An investor may obtain copies of the Deed Poll, the final terms and the amending deed, free of charge, on request, from: Computershare Investor Services Limited Level 2, 159 Hurstmere Road Takapuna Auckland 0622 Private Bag 92119 Auckland 1142 Ends For further information, please contact: May Zhang, Treasurer, BNZ T. 09-924-9203 E. bnz_treasury@bnz.co.nz