Ongoing Disclosure Notices

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:
Mercury NZ Limited
Date this disclosure made:
2 September 2026
Date of last disclosure:
17 April 2026
Director or senior manager giving disclosure
Full name(s):
Stewart Allan Hamilton
Name of listed issuer:
Mercury NZ Limited
Name of related body corporate (if applicable):
Not applicable
Position held in listed issuer:
Chief Executive
Summary of acquisition or disposal of relevant interest (excluding specified derivatives)
Class of affected quoted financial products:
Ordinary Shares (NZXC: MCY)
Nature of the affected relevant interest(s):
For the first relevant interest, registered holder
and beneficial owner; and for the second
relevant interest, beneficial owner of ordinary
shares held via custodian arrangement with
Sharesies Nominee Limited.
For that relevant interest-
Number held in class before acquisition or disposal:
11,989.27668882 (consisting of first relevant
interest: 4,486; and second relevant interest:
7,503.27668882)
Number held in class after acquisition or disposal:
16,695.27668882 (consisting of first relevant
interest: 4,486; and second relevant interest:
12,209.27668882)
Current registered holder(s):
Stewart Allan Hamilton; Sharesies Nominee
Limited
Registered holder(s) once transfers are registered:
Not applicable
Summary of acquisition or disposal of specified derivatives relevant interest (if applicable)
Type of affected derivative:
Not applicable
Class of underlying financial products:
Not applicable
Details of affected derivative-
The notional value of the derivative (if any) or the notional
amount of underlying financial products (if any):
Not applicable
A statement as to whether the derivative is cash settled or
physically settled:
Not applicable
Maturity date of the derivative (if any):
Not applicable

Expiry date of the derivative(if any):
Not applicable
The price specified in the terms of the derivative (if any):
Not applicable
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:
Not applicable
For that derivative,-
Parties to the derivative:
Not applicable
If the director or senior manager is not a party to the
derivative, the nature of the relevant interest in the
derivative:
Not applicable
Details of transactions giving rise to acquisition or
disposal
Total number of transactions to which notice relates: 1
Details of transactions requiring disclosure-
Date of transaction:27 August 2026
Nature of transaction: Transfer of ordinary shares on exercise of
vested performance share rights under Mercury
NZ Limited’s FY24–FY26 Long-Term Incentive
Plan.
Name of any other party or parties to the transaction (if
known):
Mercury NZ Limited
The consideration, expressed in New Zealand dollars, paid
or received 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:
$0.00
Number of financial products to which the transaction
related:
4,706
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 acquired or disposed of
during a closed period:
Not applicable
Whether prior written clearance was provided to allow the
acquisition or disposal to proceed during the closed period:
Not applicable
Date of the prior written clearance (if any):
Not applicable
Summary of other relevant interests after acquisition or disposal:
Class of quoted financial products:Not applicable
Nature of relevant interest:Not applicable
For that relevant interest,-
Number held in class:Not applicable
Current registered holder(s):Not applicable
For a derivative relevant interest,-
Type of derivative:Not applicable
Details of derivative,-
The notional value of the derivative (if any) or the notional
amount of underlying financial products (if any):
Not applicable

A statement as to whether the derivative is cash settled or
physically settled:
Not applicable
Maturity date of the derivative (if any):Not applicable
Expiry date of the derivative (if any):Not applicable
The price's specified terms (if any):Not applicable
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:
Not applicable
For that derivative relevant interest,- Not applicable
Parties to the derivative: Not applicable
If the director or senior manager is not a party to the
derivative, the nature of the relevant interest in the
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:
Not applicable
Date of signature:
or
Signature of person authorised to sign on behalf of director
or officer:
Date of signature:
2 September 2026
Name and title of authorised person:
Rebecca Woolacott, Legal & Commercial
Manager

---

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:
Mercury NZ Limited
Date this disclosure made:
2 September 2026
Date of last disclosure:
17 April 2026
Director or senior manager giving disclosure
Full name(s):
Craig Bernard John Neustroski
Name of listed issuer:
Mercury NZ Limited
Name of related body corporate (if applicable):
Not applicable
Position held in listed issuer:
Former Chief Strategy and Transformation Officer
Summary of acquisition or disposal of relevant interest (excluding specified derivatives)
Class of affected quoted financial products:
Ordinary Shares (NZXC: MCY)
Nature of the affected relevant interest(s):
For the first relevant interest, a relevant interest in
ordinary shares as trustee of the 316 Family Trust;
and for the second relevant interest, beneficial
owner of ordinary shares held via custodian
arrangement with Sharesies Nominee Limited.
For that relevant interest-
Number held in class before acquisition or disposal:
7,278 (consisting of the first relevant interest in ordinary
shares held as trustee of the 316 Family Trust)
Number held in class after acquisition or disposal:
11,844 (consisting of a first relevant interest in 7,278
ordinary shares held as trustee of the 316 Family Trust,
and the second relevant interest in 4,566 ordinary shares
held via custodian arrangement with Sharesies Nominee
Limited)
Current registered holder(s):
C B J Neustroski & Others (316 Family Trust);
Sharesies Nominee Limited
Registered holder(s) once transfers are registered:
Not applicable
Summary of acquisition or disposal of specified derivatives relevant interest (if applicable)
Type of affected derivative:
Not applicable
Class of underlying financial products:
Not applicable

Details of affected derivative-
The notional value of the derivative (if any) or the notional
amount of underlying financial products (if any):
Not applicable
A statement as to whether the derivative is cash settled or
physically settled:
Not applicable
Maturity date of the derivative (if any):
Not applicable
Expiry date of the derivative(if any):
Not applicable
The price specified in the terms of the derivative (if any):
Not applicable
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:
Not applicable
For that derivative,-
Parties to the derivative:
Not applicable
If the director or senior manager is not a party to the
derivative, the nature of the relevant interest in the Not applicable
Details of transactions giving rise to acquisition or
disposal
Total number of transactions to which notice relates: 1
Details of transactions requiring disclosure-
Date of transaction:27 August 2026
Nature of transaction: Transfer of ordinary shares on exercise of vested
performance share rights under Mercury NZ
Limited’s FY24–FY26 Long-Term Incentive Plan.
Name of any other party or parties to the transaction (if known): Mercury NZ Limited
The consideration, expressed in New Zealand dollars, paid
or received 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:
$0.00
Number of financial products to which the transaction related: 4,566
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 acquired or disposed of
during a closed period:
Not applicable
Whether prior written clearance was provided to allow the
acquisition or disposal to proceed during the closed period:
Not applicable
Date of the prior written clearance (if any):
Not applicable
Summary of other relevant interests after acquisition or disposal:
Class of quoted financial products:Not applicable
Nature of relevant interest:Not applicable
For that relevant interest,-
Number held in class:Not applicable
Current registered holder(s):Not applicable
For a derivative relevant interest,-
Type of derivative:Not applicable

Details of derivative,-
The notional value of the derivative (if any) or the notional
amount of underlying financial products (if any):
Not applicable
A statement as to whether the derivative is cash settled or
physically settled:
Not applicable
Maturity date of the derivative (if any):Not applicable
Expiry date of the derivative (if any):Not applicable
The price's specified terms (if any):Not applicable
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:
Not applicable
For that derivative relevant interest,- Not applicable
Parties to the derivative: Not applicable
If the director or senior manager is not a party to the
derivative, the nature of the relevant interest in the
derivative:
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:
Not applicable
Date of signature:
or
Signature of person authorised to sign on behalf of director
or officer:
Date of signature:2 September 2026
Name and title of authorised person:Rebecca Woolacott, Legal & Commercial Manager

---

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:
Mercury NZ Limited
Date this disclosure made:
2 September 2026
Date of last disclosure:
Not Applicable
Director or senior manager giving disclosure
Full name(s):
Tim Thompson
Name of listed issuer:
Mercury NZ Limited
Name of related body corporate (if applicable):
Not applicable
Position held in listed issuer:
Executive General Manager - Wholesale
Summary of acquisition or disposal of relevant interest (excluding specified derivatives)
Class of affected quoted financial products:
Ordinary Shares (NZXC: MCY)
Nature of the affected relevant interest(s):
Beneficial owner of ordinary shares held via
custodian arrangement with Sharesies Nominee
Limited.
For that relevant interest-
Number held in class before acquisition or disposal:
0
Number held in class after acquisition or disposal:
1,033
Current registered holder(s):
Sharesies Nominee Limited
Registered holder(s) once transfers are registered:
Not applicable
Summary of acquisition or disposal of specified derivatives relevant interest (if applicable)
Type of affected derivative:
Not applicable
Class of underlying financial products:
Not applicable
Details of affected derivative-
The notional value of the derivative (if any) or the notional
amount of underlying financial products (if any):
Not applicable
A statement as to whether the derivative is cash settled or
physically settled:
Not applicable
Maturity date of the derivative (if any):
Not applicable
Expiry date of the derivative(if any):
Not applicable
The price specified in the terms of the derivative (if any):
Not applicable

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:
Not applicable
For that derivative,-
Parties to the derivative:
Not applicable
If the director or senior manager is not a party to the
derivative, the nature of the relevant interest in the Not applicable
Details of transactions giving rise to acquisition or
disposal
Total number of transactions to which notice relates: 1
Details of transactions requiring disclosure-
Date of transaction:27 August 2026
Nature of transaction: Transfer of ordinary shares on exercise of vested
performance share rights under Mercury NZ
Limited’s FY24–FY26 Long-Term Incentive Plan.
Name of any other party or parties to the transaction (if known): Mercury NZ Limited
The consideration, expressed in New Zealand dollars, paid
or received 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:
$0.00
Number of financial products to which the transaction related: 1,033
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 acquired or disposed of
during a closed period:
Not applicable
Whether prior written clearance was provided to allow the
acquisition or disposal to proceed during the closed period:
Not applicable
Date of the prior written clearance (if any):
Not applicable
Summary of other relevant interests after acquisition or disposal:
Class of quoted financial products:Not applicable
Nature of relevant interest:Not applicable
For that relevant interest,-
Number held in class:Not applicable
Current registered holder(s):Not applicable
For a derivative relevant interest,-
Type of derivative:Not applicable
Details of derivative,-
The notional value of the derivative (if any) or the notional
amount of underlying financial products (if any):
Not applicable
A statement as to whether the derivative is cash settled or
physically settled:
Not applicable
Maturity date of the derivative (if any):Not applicable
Expiry date of the derivative (if any):Not applicable

The price's specified terms (if any):Not applicable
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:
Not applicable
For that derivative relevant interest,- Not applicable
Parties to the derivative: Not applicable
If the director or senior manager is not a party to the
derivative, the nature of the relevant interest in the
derivative:
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:
Not applicable
Date of signature:
or
Signature of person authorised to sign on behalf of director
or officer:
Date of signature:2 September 2026
Name and title of authorised person:Rebecca Woolacott, Legal & Commercial Manager

---

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:
Mercury NZ Limited
Date this disclosure made:
2 September 2026
Date of last disclosure:
Not Applicable
Director or senior manager giving disclosure
Full name(s):
Matt Tolcher
Name of listed issuer:
Mercury NZ Limited
Name of related body corporate (if applicable):
Not applicable
Position held in listed issuer:
Executive General Manager - Generation
Development
Summary of acquisition or disposal of relevant interest (excluding specified derivatives)
Class of affected quoted financial products:
Ordinary Shares (NZXC: MCY)
Nature of the affected relevant interest(s):
Beneficial owner of ordinary shares held via
custodian arrangement with Sharesies Nominee
Limited.
For that relevant interest-
Number held in class before acquisition or disposal:
0
Number held in class after acquisition or disposal:
1,101
Current registered holder(s):
Sharesies Nominee Limited
Registered holder(s) once transfers are registered:
Not applicable
Summary of acquisition or disposal of specified derivatives relevant interest (if applicable)
Type of affected derivative:
Not applicable
Class of underlying financial products:
Not applicable
Details of affected derivative-
The notional value of the derivative (if any) or the notional
amount of underlying financial products (if any):
Not applicable
A statement as to whether the derivative is cash settled or
physically settled:
Not applicable
Maturity date of the derivative (if any):
Not applicable
Expiry date of the derivative(if any):
Not applicable
The price specified in the terms of the derivative (if any):
Not applicable

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:
Not applicable
For that derivative,-
Parties to the derivative:
Not applicable
If the director or senior manager is not a party to the
derivative, the nature of the relevant interest in the
Not applicable
Details of transactions giving rise to acquisition or
disposal
Total number of transactions to which notice relates: 1
Details of transactions requiring disclosure-
Date of transaction:27 August 2026
Nature of transaction: Transfer of ordinary shares on exercise of vested
performance share rights under Mercury NZ
Limited’s FY24–FY26 Long-Term Incentive Plan.
Name of any other party or parties to the transaction (if known): Mercury NZ Limited
The consideration, expressed in New Zealand dollars, paid
or received 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:
$0.00
Number of financial products to which the transaction related: 1,101
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 acquired or disposed of
during a closed period:
Not applicable
Whether prior written clearance was provided to allow the
acquisition or disposal to proceed during the closed period:
Not applicable
Date of the prior written clearance (if any):
Not applicable
Summary of other relevant interests after acquisition or disposal:
Class of quoted financial products:Not applicable
Nature of relevant interest:Not applicable
For that relevant interest,-
Number held in class:Not applicable
Current registered holder(s):Not applicable
For a derivative relevant interest,-
Type of derivative:Not applicable
Details of derivative,-
The notional value of the derivative (if any) or the notional
amount of underlying financial products (if any):
Not applicable
A statement as to whether the derivative is cash settled or
physically settled:
Not applicable
Maturity date of the derivative (if any):Not applicable
Expiry date of the derivative (if any):Not applicable

The price's specified terms (if any):Not applicable
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:
Not applicable
For that derivative relevant interest,-
Not applicable
Parties to the derivative: Not applicable
If the director or senior manager is not a party to the
derivative, the nature of the relevant interest in the
derivative:
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:Not applicable
Date of signature:
or
Signature of person authorised to sign on behalf of director
or officer:
Date of signature:
2 September 2026
Name and title of authorised person:Rebecca Woolacott, Legal & Commercial Manager
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