CHIEF EXECUTIVE
Stew became Mercury’s Chief Executive in September 2024. He joined Mercury in 2021 as the Executive General Manager, Generation, and was responsible for the management, operation and maintenance of our electricity generation assets.
Before joining Mercury, Stew was the Chief Executive at New Zealand Aluminium Smelters Ltd and has over 25 years’ experience working for industrial energy customers in mining, minerals processing and manufacturing in Australia, New Zealand and Africa.
Stew has a Chemical Engineering degree from Auckland University and an MBA from Melbourne University. With a proven track record of success in leading large, complex businesses, he is well placed to ensure Mercury capitalises and builds on its strong platform for growth.
CHIEF FINANCIAL OFFICER
Richard joined Mercury in April 2025. He oversees Mercury's financial strategy and operations.
Richard has over 25 years of experience in finance and primary industries. Before joining Mercury, he was the CFO of Zespri International Ltd and held roles at Ballance Agri-Nutrients, HSBC, Credit Suisse, and Westpac. Richard holds a degree in Finance and excels in corporate finance, M&A, business transformation, and strategy development.
CHIEF OPERATING OFFICER - CUSTOMER
Craig leads our customer service delivery and is responsible for driving the commercial strategy of our customer business.
Craig joined Mercury in 2021. He has significant experience in the energy sector, with more than a decade’s experience in senior leadership positions, most recently with Trustpower.
CHIEF PEOPLE EXPERIENCE AND TECHNOLOGY OFFICER
Fiona is responsible for leading the alignment of our people experience and technology teams to deliver strategies that support the future of work, our intergenerational diverse workforce and leveraging smart tech to deliver on our strategic goals.
Fiona joined Mercury from Trustpower in 2022 via our acquisition of the Trustpower retail business. She was with Trustpower for 26 years, has vast electricity and telecommunications industry knowledge and extensive experience in the delivery of customer-centric outcomes.
CHIEF OPERATING OFFICER GENERATION
Kevin joined Mercury in April 2025. He oversees the safe operation and maintenance of Mercury's electricity generation assets.
Kevin has over three decades of experience in large industry, focusing on operational excellence, risk management, and safety leadership. Most recently, Kevin was General Manager (Operations) supporting multiple Rio Tinto Sites and has previously been General Manager of operations in both Queensland and Tasmania. Kevin strives to build high performing teams and to deliver safe, quality outcomes.
EXECUTIVE GM WHOLESALE
Tim is responsible for managing Mercury’s overall electricity portfolio with specific responsibility for all wholesale market activities and sales to large commercial and industrial customers.
Tim joined Mercury in 2005 and has held a range of roles across the business including GM Wholesale and Head of Treasury and Investor Relations.
EXECUTIVE GM GENERATION DEVELOPMENT
Matt leads Mercury’s generation development and is responsible for planning, developing and delivering new renewable generation.
Matt joined Mercury in 2022 and is an infrastructure professional and engineer with 20 years’ experience developing and delivering large and complex utility infrastructure in the US and NZ.