Mr Martin was appointed to the Board in January 2013 and as Chairman in December 2013. He has over 35 years’ experience in the energy, utility and infrastructure sectors, having spent 25 years with the Australian Gas Light Company Ltd (AGL), including five years as CEO and Managing Director. After leaving AGL, Mr Martin was CEO of the infrastructure division of Challenger Financial Services Group and, subsequently, Managing Director of Murchison Metals Ltd. He is currently Chairman of Sydney Desalination Plant Pty Ltd and Deputy Board Chair of Western Power. Mr Martin previously served as Chairman of Prostar Investments (Australia) Pty Ltd and as a non-executive Director of Santos Ltd.

Mr Martin is an independent non-executive Director and is Chairman of the Board and the Nominations and Governance Committee. He is also a member of the People and Performance Committee.

Mr O'Leary was appointed Chief Executive Officer of Iluka Resources Limited in September 2016.
He was previously Managing Director of Wesfarmers Chemicals, Energy and Fertilisers, a division of Wesfarmers Limited, having been appointed to that role in 2010. Mr O'Leary had joined Wesfarmers in 2000 and, prior to that, had worked in London in finance law, investment banking and private equity.
He holds a law degree from The University of Western Australia and has completed the Advanced Management Program at Harvard Business School. Since 2006 he has been a director of the Clontarf Foundation, a not-for-profit organisation that helps young Aboriginal men improve their education, discipline and employment prospects.

Mr Ranck was appointed to the Board in January 2013. He has held senior management positions with DuPont, both in Australia and internationally in finance, chemicals, pharmaceuticals and agriculture for over 30 years. He also served as a director of DuPont’s Hong Kong based subsidiary, Titanium Technologies, for seven years.  Mr Ranck retired as Managing Director of DuPont Australia and New Zealand and Group Managing Director of DuPont ASEAN in May 2010.  In 2018 Mr Ranck retired as Chairman of Elders Ltd after six years as a director and four years as Chairman. Also in 2018 Mr Ranck retired as director of CSIRO after an appointment of seven years. 

Mr Ranck is an independent non-executive Director and is Chairman of the People and Performance Committee.  He is also a member of the Nominations and Governance Committee.

Mr Bastos was appointed to the Board in February 2014. Until August 2017, Marcelo was the Chief Operating Officer of the global resources company, MMG Ltd, with responsibility for operations in three continents. He has extensive experience in major projects development and operation, and company management in the metals and mining industry (iron ore, gold, copper, nickel and coal sectors). Mr Bastos also served as the Chief Executive Officer of BHP Billiton Mitsubishi Alliance (BMA), President of Nickel West (BHP Billiton), President and Chief Operating Officer of Cerro Matoso and Nickel Americas (BHP Billiton) and had a 19 year career with Vale (CVRD) in senior management and operational positions, the last of those as Director of Non Ferrous Operations. He is currently a non-executive Director of Aurizon Holdings Ltd, Golder Associates and AngloAmerican PLC. He is a former non-executive Director of OZ Minerals and Golding Contractors Pty Ltd, a former member of the Western Australia Chamber of Mines and Energy and served as Vice President of the Queensland Resources Council. 

Mr Cole was appointed to the Board on 1 March 2018. Mr Cole is an experienced business leader and has worked for over 30 years in the energy and resources industry. He has held a diverse range of senior positions in commercial, corporate, marketing and business strategy and planning functions. Mr Cole is currently Chairman of global online-liquefied natural gas trading platform company, GLX Group, and has worked closely in all aspects of the company’s development and marketing. Mr Cole was previously Managing Director of oil and gas production and exploration company, Beach Energy where he led a whole of business review and successfully implemented a new strategic direction for the company. Mr Cole also spent over eight years at Woodside Petroleum Ltd across a number of senior positions in commercial, corporate and legal areas, including Executive Director, Executive Vice President (Corporate and Commercial) and General Counsel. Prior to his time at Woodside, Mr Cole was a Partner at the law firm King & Wood Mallesons. Mr Cole is currently Chairman of the Western Australian electricity utility, Electricity Generation and Retail Corporation (trading as Synergy) and is Chairman of Southern Ports Authority (a West Australian state owned authority and operator of Bunbury, Albany and Esperance ports).

Mr Cole is an independent non-executive Director, and is a member of the Nominations and Governance Committee and the People and Performance Committee.

Ms Saint was appointed to the Board in October 2019. Ms Saint joins the Board from Bechtel Group, where she acquired more than 19 years’ leadership experience over a distinguished executive career. Having most recently served as Chief Audit Executive, Ms Saint was formerly Chief Financial Officer of Bechtel’s Mining and Metals Global Business Unit. Her expertise encompasses corporate governance, enterprise risk and supply chain and project management.  She is a fellow of the Australian Society of Certified Practising Accountants (CPA Australia) and the Australian Institute of Company Directors. In 2003, Ms Saint was recognised as the Telstra Queensland Business Woman of the Year.

Ms Saint is an independent non-executive director and a member of the Audit and Risk Committee and the Nominations and Governance Committee.

Ms Corlett was appointed to the Board in May 2019. She is a professional non-executive director following an executive career spanning mine operations, investment banking and private equity. Ms Corlett is currently a non-executive director of Aurelia Metals Ltd, a Trustee of the Australian Institute of Mining and Metallurgy (AusIMM) Education Endowment Fund and a director of The Foundation for National Parks and Wildlife. A geologist, Ms Corlett's background is in mining operations and exploration for RGC Ltd and Goldfields Ltd. She was most recently an Investment Director for global mining private equity fund, following a career in mining project finance and credit risk management for Standard Bank Limited, Deutsche Bank and Macquarie Bank. Ms Corlett's qualifications include a Bachelor of Science (Honours in Geology) from the University of Melbourne. She is a Graduate of the Australian Institute of Company Directors and member of the AusIMM.

Ms Corlett is an independent non-executive Director and is a member of the Audit and Risk Committee and the Nominations and Governance Committee.