Ongoing Disclosure Notice

Ongoing Disclosure Notice Disclosure of Directors and Senior Managers Relevant Interests Sections 297(2) and 298(2), Financial Markets Conduct Act 2013 To NZX Limited; and Name of listed issuer: Spark New Zealand Limited (Spark NZ) Date this disclosure made: 9 October 2025 Date of last disclosure: 22 September 2025 Director or senior manager giving disclosure Full name(s): John Wesley-Smith Name of listed issuer: Spark NZ Name of related body corporate (if applicable): N/A Position held in listed issuer: Strategy and Regulatory Director Summary of acquisition or disposal of relevant interest (excluding specified derivatives) Class of affected quoted financial products: Ordinary shares in Spark NZ (SPK) Nature of the affected relevant interest(s): 1. Legal ownership of ordinary shares issued upon conversion of options pursuant to the Spark NZ Long Term Incentive (LTI) Scheme 2. Lapse of options to acquire shares pursuant to the Spark NZ LTI Scheme 3. Legal ownership of ordinary shares following disposal on market to satisfy tax liabilities that arise from the provision of benefits pursuant to the Spark NZ LTI Scheme For that relevant interest- Number held in class before acquisition or disposal: 1. 0 ordinary shares before conversion of options 2. 169,828 options before lapse of options 3. 1,148 ordinary shares before disposal Number held in class after acquisition or disposal: 1. 1,148 ordinary shares after conversion of options 2. 152,618 options after lapse of options 3. 694 ordinary shares after disposal Current registered holder(s): 1. N/A 2. John Wesley-Smith 3. John Wesley-Smith Registered holder(s) once transfers are registered: John Wesley-Smith Summary of acquisition or disposal of specified derivatives relevant interest (if applicable) Type of affected derivative: N/A Class of underlying financial products: N/A Details of affected derivative- The notional value of the derivative (if any) or the notional amount of underlying financial products (if any): N/A A statement as to whether the derivative is cash settled or physically settled: N/A Maturity date of the derivative (if any): N/A Expiry date of the derivative(if any): N/A The price specified in the terms of the derivative (if any): N/A Any other details needed to understand how the amount of the consideration payable under the derivative or the value of the derivative is affected by the value of the underlying financial products: N/A For that derivative,- Parties to the derivative: N/A If the director or senior manager is not a party to the derivative, the nature of the relevant interest in the derivative: N/A Details of transactions giving rise to acquisition or disposal Total number of transactions to which notice relates: Three Details of transactions requiring disclosure- Date of transaction: 6 October 2025 Nature of transaction: 1. Conversion of options into ordinary shares and the issue of such ordinary shares pursuant to the Spark NZ LTI Scheme 2. Lapse of options to acquire shares pursuant to the Spark NZ LTI Scheme 3. Disposal of ordinary shares on market to satisfy tax liabilities that arise from the provision of benefits pursuant to the Spark NZ LTI Scheme Name of any other party or parties to the transaction (if known): N/A The consideration, expressed in New Zealand dollars, paid or recieved for the acquisition or disposal. If the consideration was not in cash and cannot be readily by converted into a cash value, describe the consideration: 1. No consideration is payable by the Participants on issue of fully paid ordinary shares following the exercise of vested options under the Spark NZ LTI Scheme 2. No consideration is payable by the Participants on the lapse of options under the Spark NZ LTI Scheme 3. $1,075.98 Number of financial products to which the transaction related: 1. 1,148 options converted into 1,148 ordinary shares 2. 17,207 options lapsed 3. 454 ordinary shares disposed If the issuer has a financial products trading policy that prohibits directors or senior managers from trading during any period without written clearance (a closed period) include the following details— Whether relevant interests were aquired or disposed of during a closed period: No Whether prior written clearance was provided to allow the aquisition or disposal to proceed during the closed period: N/A Date of the prior written clearance (if any): N/A Summary of other relevant interests after acquisition or disposal: Class of quoted financial products: Ordinary shares Nature of relevant interest: Legal ownership of options to acquire ordinary shares pursuant to the Spark NZ LTI Scheme and Spark NZ Transformation Delivery Incentive Schemes and legal ownership of ordinary shares For that relevant interest,- Number held in class: 187,247 options and legal ownership of 694 ordinary shares Current registered holder(s): John Wesley-Smith For a derivative relevant interest,- Type of derivative: N/A Details of derivative,- The notional value of the derivative (if any) or the notional amount of underlying financial products (if any): N/A A statement as to whether the derivative is cash settled or physically settled: N/A Maturity date of the derivative (if any): N/A Expiry date of the derivative (if any): N/A The price's specified terms (if any): N/A Any other details needed to understand how the amount of the consideration payable under the derivative or the value of the derivative is affected by the value of the underlying financial products: N/A For that derivative relevant interest,- Parties to the derivative: N/A If the director or senior manager is not a party to the derivative, the nature of the relevant interest in the derivative: N/A Certification I certify that, to the best of my knowledge and belief, the information contained in this disclosure is correct and that I am duly authorised to make this disclosure by all persons for whom it is made. Signature of director or officer: Date of signature: or Signature of person authorised to sign on behalf of director or officer: Date of signature: 9 October 2025 Name and title of authorised person: Paige Howard-Smith, Company Secretary