Michael Barry

Non Executive Chairman

Mr. Barry’s executive career included 10 years in senior executive roles at Boral Limited, including Regional General Manager for the Western Australian and South Australian Construction Materials operations. Most recently Mr Barry was CEO of MSF Sugar Limited for 13 years up until 2020.

Michael Barrett


Mr Barrett is a Chartered Accountant with over 27 years of international experience in finance, strategy and corporate development, capital markets and risk management. Mr Barrett also has extensive experience working in the energy and resources industry. More specifically, Mr Barrett was previously Chief Financial Officer for Rio Tinto’s US energy business. Mr Barrett spent two years as National Lead Partner for Deloitte’s Risk Advisory Energy and Resources practice where he specialised in corporate governance, board advisory and risk management.

Brad Mytton

Brad Mytton


Mr Mytton is a Partner at ROC, with deep experience in clean energy technology, governance and corporate finance. Brad has been influential in assisting the Board for its future planning and growth. He holds an MBA from University of Oxford, and a B.Com (hons) in Management Science from the University of Canterbury.

Brian Mumme


Mr Mumme is a senior executive with over 30 years of national and international experience in commodities (oil, gas, agriculture), with a focus on marketing, trading, risk management and optimising supply chains. He has broad general management experience and has successfully guided teams and businesses through significant organisational change. Prior to establishing his own consulting business, Mr Mumme was seconded from BP Australia into the role of President for the North West Shelf Gas Joint Venture for six years in a career of over 20 years with BP. Mr Mumme was also previously General Manager of the CBH Groups Marketing and Trading business – CBH Grain.


David Wheeley

Chief Executive Officer

Mr Wheeley has extensive experience in industrial Manufacture and the waste / resource recovery sectors. With an executive career that includes 12 years senior executive roles at Holcim Australia including Executive General Manager – Humes. More recently Mr Wheely was the Group Chief Executive officer for Hynds limited NZ & held multiple General Manager roles for Cleanaway.

Gary Foster

Gary Foster

Head of Business Development

Mr Foster has held both Non-Executive and Executive Chairman positions over the last 15 years. His experience covers the management of both domestic and international domiciled companies in Australia, UK and India. He is co-founder of Transaction Solutions International (India) Pty Ltd TSI is an Indian entity that provides bank infrastructure and e-payment technology to the Indian financial sector and owns and manages over 10,000 ATMs in India.

Gary is co-founder or Pearl Global Limited as is currently the Executive Chairman. Gary assists the management team with the operations and strategic direction of Pearl. He was formerly CEO and Director of ATM Systems Pty Ltd, an independent provider of electronic payments and banking systems to the SME sector, and General Manager of BWK LLC (Germany), an agricultural physical commodities trading company.

Andrew Drennan

Andrew Drennan

Head of Strategy and Business Development

Mr Drennan is a corporate strategic specialist with strong leadership skills in waste management field. Mr Drennan, one of the founding members of Pearl Global, utilises a combination of his operational and technical skill set to develop strategic partnerships and drive Pearl Global’s long term strategic direction. He has played an Integral  role in researching, developing and planning  the technology which will drive Pearl Global into the sustainable future. His vast experience includes Leadership roles at BHP Billiton Iron Ore spanning over 10 years, as well as his time with the Western Australian Department of Mines and Petroleum. Mr. Drennan holds a Bachelor of Science Degree majoring in Environmental Science  (Murdoch University, Western Australia).

Alex Mitchell

Chief Financial Officer

Mr Mitchell’s financial and commercial management background spans a range of industries with particular experience in resources. He was the CFO for Kina Petroleum Limited, and also Pembroke Resources, and held senior financial management roles with blue-chip organisations including Oil Search Limited and Investa Property Group. He has been responsible for the establishment and development of overseas-based finance departments in start up and transformational environments and has worked extensively in joint venture settings negotiating commercial agreements and representing the interests of participants. He has also worked closely with government agencies and regulators on matters of compliance and strategy. Mr Mitchell holds a Bachelor of Economics degree (Macquarie University, NSW) and is a Chartered Accountant and Chartered Secretary.