Appointment of Simon Mackenzie as non-executive Director

Genesis Internal
MARKET RELEASE
Date: 12 August 2026
NZX: GNE / ASX: GNE
Appointment of Simon Mackenzie as an independent non-executive Director

The Genesis Energy Board is pleased to announce the appointment of Simon Mackenzie as an
independent non-executive director of the Company.
Simon has broad experience across the energy sector. He served as Vector’s Group Chief Executive
from 2008 to 2025, currently serves as a director of Bluecurrent and has previously held director roles
for NZ Windfarms and the Gas Industry Company. Prior to joining Vector, Simon gained experience in
both energy retailing and generation through roles with Mercury and ECNZ.
During his tenure as Vector Group Chief Executive, Simon transformed the company from a traditional
energy infrastructure operator into a more diversified, technology-driven business. He has
championed innovation across the energy sector, forging partnerships with Amazon Web Services and
Google X, supporting early trials of solar and battery technologies, and overseeing major investment in
Auckland’s electricity and gas networks to accommodate growth, electrification and climate-related
resilience.
Simon’s appointment is effective from 12 August 2026, and in accordance with Genesis Energy's
constitution and the NZX Listing Rules, he will retire at the Company's Annual Shareholder Meeting to
be held on 20 October 2026 and will put himself forward for election by shareholders at the meeting.
The Board has determined that Simon Mackenzie is an independent director.
ENDS
For investor relations enquiries, please contact:
Michael Hunter
General Manager - Investor Relations and
Corporate Valuation
M: 021 073 1603
For media enquiries, please contact:
Graeme Muir
Group Manager
Communications and Media
M: 027 202 4885
About Genesis Energy:
Genesis Energy (NZX: GNE, ASX: GNE) is a diversified New Zealand energy company. Genesis sells
electricity, reticulated natural gas and LPG and is one of New Zealand's largest energy retailers with
approximately 500,000 customers. The Company generates electricity from a diverse portfolio of
thermal and renewable generation assets located in different parts of the country. Genesis also has a
46% interest in the Kupe Joint Venture, which owns the Kupe Oil and Gas Field offshore of Taranaki,
New Zealand. Genesis had revenue of NZ$3.7 billion during the 12 months ended 30 June 2025. More
information can be found at www.genesisenergy.co.nz