Meridian Energy appoints Mandy Simpson as CFO

Meridian Energy has appointed Mandy Simpson as its new Chief Financial Officer, effective 1 September 2025.

Mandy brings a depth of executive experience across finance, operations and technology, both in the UK and in New Zealand. This includes CFO roles for the State Services Commission, IT consultancy
Fronde Systems and management and accounting roles at Audit New Zealand and Deloitte. She is a Fellow of the Institute of Chartered Accountants in England and Wales and holds a Master of Law
with Honours from Cambridge University.

Mandy has deep capital markets expertise, including four years as Chief Operating Officer at NZX and operations and investigative roles at the London Stock Exchange. Most recently Mandy has been General Manager, Strategy, Delivery and Innovation at Z Energy and has been part of that company’s Leadership Team since 2019.

Meridian’s incoming CEO Mike Roan says he is delighted to be welcoming someone of Mandy’s calibre to the company’s Executive Team.

“Mandy has proven leadership capability and a great mix of strong finance skills and broader operational and technology experience. She also has a strong record delivering organisation change and technology transformation.”

As CFO, Mandy will have responsibility for Finance, Risk, Treasury, Investor Relations and Procurement. Given her 1 September start date and Mike Roan’s transition to CEO, Meridian Group Financial Controller Helen Peters has been appointed Acting CFO.