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Officers and Board


AAMEG is administered and run by appointed Officers, who are supported by a Board of elected directors from member companies. Deloitte has agreed to act as auditor for AAMEG Ltd.


 Trish Tim Carstens – Chairman
Tim has been Managing Director of Base Resources Ltd since its inception in 2008. During this time, it has acquired, designed, funded, developed and successfully operationalized the $310 million Kwale Mineral Sands Project, Kenya’s first large scale mining project.In the process of advancing the Kwale Mineral Sands project from concept to operation, Tim has gained valuable experience of the challenges and opportunities in the African resources sector.Tim has been instrumental in laying the foundations for the company’s progressive governance, sustainability and social responsibility programs, which have secured broad local community and Kenyan government support for the Kwale project and the company.A Chartered Accountant by profession, Tim’s resources career spans more than 16 years, including senior executive roles with Perilya Limited, North Limited, Robe River Iron Associates, Iron Ore Company of Canada and St Barbara Mines Limited in operations, strategy, corporate development and finance, both in Australia and overseas.Tim was appointed Chairman of AAMEG in January 2016.
 Trish Ben Gargett – Vice-Chairman
Ben Gargett is a partner in PwC’s Assurance practice, based in Perth. Ben specialises in the resources sector, primarily mining, but also oil & gas. Through his role in driving PwC’s growth in the mid-tier and junior mining sectors, he developed a passion for supporting dynamic and growing organisations and helping companies to achieve and exceed their potential.Ben’s focus on the mining sector lead to the development of PwC’s Australia-Africa Practice, which he lead nationally. The Australia-Africa practice connects Australian companies with PwC’s leading African network, supported by our Australian team which understand their business, culture and objectives and connects our clients to partners on the ground where they need it.He has extensive experience in providing audit and related services to the resources sector globally, working with iconic Australia companies such as Fortescue Metals Group, Rio Tinto and BHP Billiton, large multinationals such as Newmont, Shell and Exxon Mobil and a range of companies across the junior and mid-tier mining sector.Ben spent three years as PwC’s Global Mining Knowledge Manager, on the firm’s Global Mining Leadership Team, which included responsibility for supporting and growing PwC’s major mining account teams around the world. He is an Assurance partner specialising in the resources sector and has extensive experience in providing audit related services, merger and acquisition assistance and accounting advice to all sizes of mining, oil & gas producers and related services companies and is a frequent key speaker at conventions and conferences in the resources sector.Ben was appointed Vice-Chairman of AAMEG in January 2016.
Trish Trish O’Reilly – Chief Executive Officer
Trish has over 30 years’ experience across the public, private and not-for-profit sectors, working with a range of communities and population groups in South Africa, England and Australia. Her most recent roles undertaken with the Department for Communites in the Government of Western Australia include:

  • Manager Policy and Planning – focussing on assessing community needs and capacity building to strengthen communities, and
  • Manager Active Ageing Strategy – responding to the ageing of the population, managing and implementing the international WHO Age Friendly Cities Project across the state.

Recognised for her innovation and creativity and a commitment to excellence, Trish operates at many levels and is highly skilled at forging partnerships with key stakeholders. Central to Trish’s approach, is a commitment to engage with all levels of society to provide creative, sustainable solutions that will empower, build capacity and contribute to the development of a just society.

Trish has a BA (Psych) and Post Grad B.Soc Wk from the University of Western Australia. Trish is a current committee member of UN Women Australia Perth Chapter. Trish lives in Perth.

Board Members

Mining & Exploration Company Representatives

Tim Carstens – Managing Director (Chairman of AAMEG)
Base Resources Ltd

Andrew Dinning – President & CEO
Sarama Resources

Ron Sayers – Managing Director

Bill Turner – Director

John Welborn – Managing Director & CEO
Resolute Mining

Service Company Representatives

Ben Gargett – Partner (Vice-Chairman of AAMEG)