Capital Change Notice – Capital Bonds Redemption

Pursuant to NZX Listing Rule 3.13.1, Mercury NZ Limited announces that the following securities have been redeemed: Name of issuer: Mercury NZ Limited NZX ticker code: MCY020 Class of financial product: Unsecured, subordinated capital bonds ISIN: NZMCYDG002C0 Currency: NZ$ Number redeemed: 300,000,000 Nominal value (if any): $1.00 Redemption price per security: $1.00, together with accrued and unpaid interest Nature of the payment (for example, cash or other consideration): Cash Amount paid up (if not in full): Fully paid up Percentage of total class of Financial Products redeemed (calculated on the number of Financial Products of the Class, excluding any Treasury Stock, in existence): 100% For an issue of Convertible Financial Products or Options, the principal terms of Conversion (for example the Conversion price and Conversion date and the ranking of the Financial Product in relation to other Classes of Financial Product) or the Option (for example, the exercise price and exercise date): Not applicable Reason for redemption and specific authority for redemption (the reason for change must be identified here): Exercise of Mercury’s optional right of redemption on the First Reset Date, being 11 July 2024 Total number of Financial Products of the Class after the redemption (excluding Treasury Stock) and the total number of Financial Products of the Class held as Treasury Stock after the redemption: Nil In the case of an acquisition of shares, whether those shares are to be held as treasury stock: Not applicable Specific authority for the redemption, including a reference to the rule pursuant to which the redemption is made: Mercury Board Resolutions on 19 February 2024. Rule 3.13.1. Terms or details of the redemption (for example: restrictions, escrow arrangements): As set out in the redemption notice dated 27 June 2024 Date of redemption: 11 July 2024 Name of person authorised to make this announcement: Howard Thomas, General Counsel & Company Secretary Contact person for this announcement: Howard Thomas Contact phone number: 09 308 8270 Contact email address: Howard.Thomas@mercury.co.nz Date of release through MAP: 11 July 2024