MERCURY NZ LIMITED — Director's Dealing 2021

Jul 30, 2021

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Initial Disclosure Notice

Disclosure of Directors and Senior Managers Relevant Interests

Sections 297(1) and 298(1), Financial Markets Conduct Act 2013

To NZX Limited; and Name of listed issuer: Date this disclosure made: Date on which issuer listed or appointment made:

Mercury NZ Limited 30 July 2021 26 July 2021

Director or senior manager giving disclosure

Full name: Name of listed issuer: Name of related body corporate (if applicable): Position held in listed issuer:

Stewart Allan Hamilton Mercury NZ Limited N/A GM Generation

Summary of relevant interest (excluding specified derivatives)

Class of quoted financial product: Number held in class: Nature of relevant interest:

Current registered holder:

Ordinary shares (NZX: MCY)
1,500	1,500	1,500
Registered holder and beneficialowner	Power to acquire or disposeof, or to control theacquisition or disposition of,or power to exercise, or tocontrol the exercise of, aright to vote attached toordinary shares	Power to acquire or disposeof, or to control theacquisition or disposition of,or power to exercise, or tocontrol the exercise of, aright to vote attached toordinary shares
Stewart Allan Hamilton	Lara Nicole Hamilton	Aimee Elizabeth Hamilton

Summary of specified derivatives relevant interest (if applicable)

Type of derivative: Class of underlying financial products:

Details of derivative

The notional value of the derivative (if any) or the notional amount of underlying products (if any): A statement as to whether the derivative is cash settled or physically settled: Maturity date of the derivative (if any): Expiry date of the derivative (if any): The price specified in the terms of the derivative(if any):

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:

For that derivative,-

Parties to the derivative: If the director or senior manager is not a party to the derivative, the nature of the relevant interest in the derivative:

Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable

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: Name and title of authorised person:

30 July 2021 Kendal Luskie, Legal Counsel