Chris Indermaur

Non-Executive Chairman

Chris Indermaur has over 30 years of experience in large Australian companies in Engineering or Commercial roles. Amongst these roles he was the Engineering and Contracts Manager for the QNI Nickel Refinery at Yabulu, Company Secretary for QAL and General Manager for Strategy and Development at Alinta Ltd.


Chris holds a Bachelor of Engineering (Mechanical) and a Graduate Diploma of Engineering (Chemical) from the West Australian Institute of Technology (now Curtin University). Chris also holds a Bachelor of Laws and a Master of Laws from the Queensland University of Technology and a Graduate Diploma in Legal Practice from the Australian National University.   Mr Indermaur is also the Chairman of Medibio Ltd (MEB), a Director of Austin Engineering Ltd (ANG) and a Director of Centrex Metals Ltd (CXM).  Chris rejoined the Poseidon Board in April 2009 and was appointed Chairman in February 2014.

Mr David Singleton

Non-Executive Director

David Singleton became the CEO & MD of Poseidon Nickel in July 2007. David was the Chief Executive Officer and Managing Director of Clough Limited between August 2003 and January 2007. Prior to joining Clough, he was the Group Head of Strategy, Mergers and Acquisitions for BAE Systems (formally British Aerospace) based in London. Mr Singleton spent three successful years as the Chief Executive Officer of Alenia Marconi Systems and was based in Rome, Italy. Mr Singleton has served as a member of the National Defence Industries Council in the UK, and as a board member and Vice-President of Defence for Intellect.  He has held Directorships with Quickstep Holdings, which is a technology based carbon fibre manufacturer to the Defence and Aerospace industry and also Austal ships, where he is now CEO and MD.  Mr Singleton has international business experience in senior executive roles in Europe, USA and Australia and has a degree in Mechanical Engineering from University College London.


Since resigning as CEO & MD of Poseidon Nickel in January 2016, David continues to serve on the Poseidon Board.

Geoff Brayshaw

Non-Executive Director

Geoff Brayshaw had over 35 years’ experience as a Chartered Accountant in public practice before retiring from practice in June 2005. He practiced primarily in audit and assurance, other areas of practice being corporate finance and litigation support. He gained wide experience in corporate and financial accounting for the exploration and mining industry, including iron ore and nickel.


Geoff is a Fellow of both the Institute of Chartered Accountants in Australia and the AICD. He was National President of the ICAA in 2002. Until recently he was a Non-executive Director and Chairman of the audit committee of both Fortescue Metals Group Limited and AVEA Insurance Limited and is a former member of the Board of the Western Australian Small Business Development Corporation.


Geoff has served on the Poseidon Board since February 2008.

Mr Rob Dennis

Non-Executive Director

Rob Dennis is a mining engineer with over 40 years’ experience in the nickel, copper, gold and alumina industries.  In his current role as COO for the Independence Group IGO he is responsible IGO’s nickel, copper, zinc and gold operation including overseeing the development and commissioning of IGO’s Nova Project.  Prior to that, he held positions including COO at Adita Birla Minerals Ltd where he managed the expansion and development of the Nifty Copper Project in the North West of Western Australia and the Mt Gordon operation in North Queensland, General Manager Project Development for Lionore Australia, General Manager Operations for Great Central Mines and Chief Mining Engineer for Western Mining Corporation.  During his time with Western Mining Corporation, Rob worked at the Windarra Nickel Project as underground mine manager from 1980-1986.  Rob joined Poseidon Nickel in June 2007 as Chief Operating Officer and has been a Director of the Poseidon Board since February 2014.