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Our people

COAL21 is overseen by a 12-member Board chaired by George J Schuller Jr.

Mr Schuller is President – Australia of Peabody Energy and has executive responsibility for Peabody’s Australia operating platform, which includes overseeing the areas of health and safety, operations, sales and marketing, product delivery and support functions.

He has more than three decades of experience with Peabody in senior management roles in both surface and underground operations in the United States and Australia, most recently serving as Chief Operating Officer for Australia, a position he held nearly four years.  His experience also includes global roles in Continuous Improvement and Technical Services.

Mr Schuller has a Bachelor’s Degree in Engineering – Mining from West Virginia University and a Masters of Business Administration from the University of Charleston.

George J. Schuller Jr.


COAL21, based in Brisbane, is managed by a small team which looks after daily operations including financial governance, stakeholder relationships, development and approval processes for new funding proposals and oversight of funded projects.

Mark McCallum

Chief Executive Officer

The COAL21 CEO is Mark McCallum, who is also General Manager – Climate and Energy at the Minerals Council of Australia. Prior to joining the MCA, Mr McCallum was Managing Director of a public relations and communications agency with clients in the resources and energy sectors.

Mark’s previous roles include the Australian Head of Government Relations with Shell, managing reputational and political risks during a significant reprioritisation of Shell’s global investment portfolio, and the Deputy CEO of Australia’s peak oil and gas industry association – APPEA – leading the policy and advocacy arm for five years.  Mark has also held roles as a senior manager in peak resource industry representative bodies and as an advisor to the Federal Government. 

Stephen Malss

Director, Low Emissions Technologies

Stephen is a chartered professional engineer with a degree in mechanical engineering.  He has over 30 years’ experience in engineering with a focus on the research and development of low-emissions technologies.

Stephen has held a variety of positions as a project engineer, operations manager and engineering director in a range of fields including automotive low emissions research and development, submarine engineering, locomotive and marine engineering maintenance, and his current role in the field of low-emissions technologies for the coal industry. Stephen supports the strategic direction of COAL2, monitors funded projects, and undertakes joint venture negotiations for technologies that fit within COAL21’s portfolio.

Martin Oettinger

Deputy Director, Low Emissions Technologies

Martin has over 33 years’ experience in senior roles for a range of blue-chip Australian and international corporations in the power, mineral and hydrocarbon processing industries, and has developed technical expertise in carbon capture and process integration.

The last 18 years of his career have involved large-scale, first-of-kind developments, including six years in a senior technical leadership role with ZeroGen (a large-scale carbon capture and storage project involving integrated gasification combined cycle technology). Prior to his current role, he was Principal Manager, Carbon Capture, for the Global CCS Institute. Martin is accountable for analysis of national and international energy technologies and markets to assess developments and trends influencing the deployment of coal and competing energy resources, which includes a focus on carbon capture technologies and costs.

Michael Finney

Chief Financial Officer & Company Secretary

Michael is responsible for the financial, company secretarial and board governance of COAL21 unlisted public company. Michael is a member of the Institute of Chartered Accountants and holds a Bachelor’s Degree in Commerce from the University of Queensland. Michael also holds a Master of Applied Finance from FINSIA and is a graduate member of the Australian Institute of Company Directors. He has over 20 years’ experience in the fields of finance and treasury.

Carol Miller

Finance Manager

Carol has 20 years’ experience in finance and office management and is responsible for day-to-day financial operations, including the end-of-financial-year audit for COAL21. Carol holds a Bachelor of Commerce from the University of Canberra and an Accounting Associate Diploma from Nowra TAFE. She is an Associate Member of the Certified Practicing Accountants and is currently studying the CPA program.