Mr Martin is Chair of Iluka Resources Limited and Deputy Chair of Western Power. Mr Martin was a member of the COAG Energy Council Energy Appointments Selection Panel and was previously a director of Santos Limited and Energy Developments Limited and the Australian Energy Market Operator Limited. Mr Martin has 40 years' experience in the utilities, financial services, energy and energy related infrastructure sectors in Australia, New Zealand and internationally. Mr Martin was CEO and Managing Director of the Australian Gas Light Company for five years. Mr Martin then joined Challenger Financial Services Group as Chief Executive Infrastructure engaged in the management of European and North and South American infrastructure investments. He is Director of Iluka Resources Limited and Coronado Global Resources Inc.

Mr Fay is a director of Pendal Group Limited (previously BT Investment Management Limited), J O Hambro Capital Management Holdings Limited and National Cardiac Pty Limited. He was previously a director of Cromwell Property Group, Gateway Lifestyle Group, Chair of Tasman Lifestyle Continuum Limited and Deutsche Managed Investments Limited. Mr Fay was Chair of Deutsche Asset Management (Australia) Limited following a 20-year career in the financial services sector and has served on industry representative bodies. He is currently a consultant to Dexus Property Group and Microbiogen Pty Limited. Mr Fay is a director of SA Power Networks. He is Chair of the SA Power Networks Audit Committee and a member of its Risk Management and Compliance Committee and Remuneration Committee. He is Director of Cromwell Property Group, Pendal Group Limited and Gateway Lifestyle Group. Mr Fay is a member of the Risk and Compliance Committee.

Ms Brennan is a director of Argo Investments Limited, Charter Hall Group and Tabcorp Holdings Limited. Ms Brennan is also a Director of NSW Treasury Corporation and Rabobank New Zealand Ltd. She was formerly a director of Nufarm Limited and Metcash Limited. Ms Brennan has almost 40 years' experience in finance and is an experienced non-executive director and finance executive. As a finance executive, Anne has experience as a CFO of CSR Ltd and as finance director of Coates Hire Ltd. She was also a partner in the transactions business of KPMG, Anderson and EY. Ms Brennan is Director of Tabcorp Holdings Limited, Argo Investments Limited and Charter Hall Group. She is the Chair of the Risk and Compliance Committee.

Mr George is a director of the Australian Conservation Foundation. Mr George has over 30 years' experience in project development, investment, financing and management in the renewable energy industry and the broader infrastructure sector. He led the Initial Public Offer and listing of Infigen Energy's business in 2005 and was Managing Director of Infigen Energy from 2009-2016. He was the Interim Chief Executive Officer of CleanCo Queensland until September 2019 and was recently an Advisory Board Member for CGN Capital Partners Infrastructure Fund III. Mr George was Chair of the Clean Energy Council and is a leader in the Australian renewable energy industry, having served as a Panel Member for both the Australian Energy Market Operator and the Australian Energy Market Commission. Mr George is a member of the Risk and Compliance Committee.

Dr McTaggart is a director of the Suncorp Group and Chair of AA Insurance (New Zealand), a subsidiary of Suncorp Group and is also Chair of Suncentral Maroochydore Pty Ltd. Dr McTaggart is Chair of the Indigenous Business Australia Asset Management Co. He is a member of the Australian National University Council and a member of the Expert Advisory Panel for Housing Solutions Capital Funding Strategy, Indigenous Business Australia. Dr McTaggart has experience in financial markets, having been Chief Executive of QIC Limited (1998-2012). Prior to QIC, he was Under Treasurer and Under Secretary of the Queensland Department of Treasury and had a academic career. He is Director of Suncorp Group Limited.

Mr Francis has over 25 years' experience in the Australian energy and energy infrastructure industries. Prior to Spark Infrastructure, he was employed by APA Group as Chief Financial Officer and by Origin Energy Limited in various roles. He is also a Chartered Accountant. Mr Francis has been a director of SA Power Networks and Victoria Power Networks since 2009. He was appointed inaugural Chair of NSW Electricity Networks Operations (TransGrid) in December 2015 and has served as Deputy Chair since June 2016.

Ms Buck has over 20 years' experience in Australian and global infrastructure markets, focusing on energy and transport infrastructure. Ms Buck's executive career includes eight years as Head of Direct Investments and Infrastructure for NSW Treasury Corporation. She was also an Investment Director at Hastings Funds Management in New York and Chief Operating Officer of the Macquarie Group's unlisted infrastructure funds. Ms Buck commenced her career with KPMG. Ms Buck is a non-executive director of Australia Pacific Airports Corporation and a member of its Audit, Risk and Finance, and Remuneration Committees and a non-executive director of ISPT. Ms Buck is currently a non-executive director of Utilities of Australia but has advised her intention to resign with effect from 15 April 2021.

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