Board and Management

Greg joined the Board as an Independent, Non-Executive Director in November 2024 and became Chair in October at the 2025 AGM.

Greg has over 25 years’ experience in financial services and capital markets, including over 10 years as Partner and Principal Director of KPMG Australia’s Mergers and Acquisitions team. He has advised boards and management teams, providers of debt and equity and other financial sponsors on capital raisings, mergers and acquisition transactions, equity and debt structuring, public offers, and strategic growth options.

Greg specialises in energy and natural resources with a particular focus on the mining sector and is currently Non-Executive Chair of Yandal Resources Limited (ASX: YRL) and Non-Executive Director of Neometals (ASX: NMT).

Greg has a Bachelor of Commerce (Economics) and is a graduate of the Australian Institute of Company Directors.

Greg is also Chair of the Audit and Risk Committee, and a member of the Remuneration and Culture Committee and Nomination Committee.

Mick was appointed CEO in 2016 and Managing Director in October 2019. He holds a Bachelor of Science (Mining) and has over 25 years of experience in the mining industry. The last 20 years have primarily been spent in senior line management positions. Mick has a strong commercial and technical background and has spent time in operations on the east and west coasts of Australia, as well as in a number of countries throughout Asia.

Mick is a member of the Nomination Committee.

Dharma joined the Board as a Non-Executive Director in February 2024.

He is an experienced executive and non-executive director with an extensive background in professional services and human resource management across the financial services, resources and industrial sectors, in Australia and Asia.

Dharma has significant experience in the contract mining and civil construction sectors, having served as Chief Human Resources and Corporate Services Officer at Leighton Holdings, where he supported large-scale mining and infrastructure operations. Dharma has further deepened his expertise in organisational capability and workforce strategy through senior executive roles including Chief People Officer at the ABC and his current role as Chief People Officer at Toll Group. He is also a Non-Executive Director of the Committee for Economic Development of Australia.

Dharma holds a Bachelor of Commerce (Marketing), a Bachelor of Laws Degree and a Master of Commerce (Organisation and Management), from the University of New South Wales. He is also a member of the Australian Institute of Company Directors.

Dharma is Chair of the Remuneration and Culture Committee and a member of the Nomination Committee.

David joined the Board as a Non-Executive Director in July 2023.

He is a mining engineer with 40 years of international experience spanning large-scale mining operations across a diverse range of commodities, including copper and gold, diamonds, uranium, coal (thermal and coke), talc and nickel laterite. His career covers both underground and open pit operations in South Africa, Namibia, Papua New Guinea, Australia, Thailand, and Indonesia.

David has held senior roles across feasibility study management, mine planning, operations, productivity improvement and cost optimisation. His experience also includes research and due diligence, strategic planning, project evaluation, and project development for complex mining operations. He brings a deep technical understanding of the full mining lifecycle and a strong track record in assessing operational performance and long-term value drivers.

David is a Director of PT Amman Mineral Internasional Tbk, a gold and copper producer listed on the Indonesia Stock Exchange.

He holds a BSc (Hons) in Mining Engineering, a First-Class Mine Manager Certificate for Western Australia, and a Mine Manager Certificate from South Africa.  He is also a Fellow of The Royal School of Mines (ARSM) and a Chartered Engineer (C Eng).

David is a member of the Nomination Committee.

Suzan joined the Board as a Non-Executive Director during November 2025.

She is an experienced accounting professional with over 25 years of practice and industry experience. Susan spent nine years at EY in Australia and five years internationally, including with PwC. In 1998, she co-founded the Perth based accountancy firm Gooding Pervan Chartered Accountants, where she worked until her retirement from the firm in 2010.In 2003, Suzan was recognised with a Business News 40under40 Award for her contribution to business and leadership.

Suzan has also served as a Non-Executive Director of United Credit Union and Pioneer Credit, bringing governance, financial and strategic expertise to the Board.

Suzan is a graduate member of the Australian Institute of Company Directors, a member of Chartered Accountants Australia & New Zealand, and holds a Bachelor of Business from Curtin University.

Suzan is a member of the Audit and Risk, Remuneration and Culture Committee, and Nomination Committees.

Grahame joined the Board as a Non-Executive Director in January 2024.

He is an experienced executive and non-executive director with a strong background in the construction, energy and resources sectors in Australia and Asia.

Grahame brings extensive experience in engineering, mining and resources, infrastructure and civil contracting, strategy, project technical and commercial analysis, and project development and operations management. Throughout his career, he has led business development initiatives across Hong Kong, Singapore, Thailand, Vietnam, Philippines, China, and Malaysia within the infrastructure and civil contracting sectors.

He is currently a Non-Executive Director of Metals X Limited.

Grahame is a qualified mechanical engineer holding a Bachelor of Engineering (Mechanical) from the University of New South Wales and is a graduate of the Australian Institute of Company Directors.

Grahame is a member of the Audit and Risk, Remuneration and Culture, and Nomination Committees.

Mick holds a Bachelor of Science (Mining) with 24 years’ experience in the mining industry. The last 15 years have primarily been spent in senior line management positions. He has a strong commercial and technical background and has spent time in operations on the east and west coast of Australia as well as a number of countries throughout Asia.

Ursula is a Chartered Accountant and holds a Bachelor of Commerce (Honours) degree in Accounting, Auditing and Tax. She joined Macmahon in 2018 as Group Financial Controller and was appointed Chief Financial Officer on 1 November 2021.

Prior to Macmahon, Ursula has more than 20 years’ experience with KPMG South Africa and KPMG Australia providing services to a large number of global listed companies in the mining and mining services sectors.

Peter holds a Bachelor of Business and joined Macmahon in August 2020 as Chief Financial Officer. In November 2021, he moved into a strategic consulting role and was appointed Chief Corporate Development Officer in November 2023.

Peter has over 40 years’ experience in the contracting and services sectors covering mining, oil and gas, infrastructure and telecommunications. During this time, he has worked and lived in Australia, Asia and the Middle East, working with large international contracting and services companies, including CIMIC Group.

Nicola holds a Bachelor of Human Resource Management (honours). She has more than 20 years of experience in people management with global resources companies, including PTTEP, Beach Energy and Schlumberger. She specialises in building and leading HR functions in diverse climates and cultures with expertise in business and strategic planning, change management, talent management and development, and employee relations.

Jason is a Senior Executive with over 35 years of experience in the mining sector. He joined Macmahon in June 2023 as General Manager East Coast and Civil Operations and was appointed Managing Director of Surface Mining Australia in October 2024.

Jason transforms mining operations in challenging market conditions, connects strategic vision with execution and inspires high-performing teams to deliver technical excellence and continuous improvement.

Before Macmahon, Jason held senior management positions with BHP, Vale Coal and Yancoal.

Maha is a senior executive and qualified lawyer with extensive national and international experience across legal, commercial, governance, and risk in various sectors including resources, infrastructure, mining and commodities, engineering, oil and gas, and construction.

Maha has significant experience advising on large-scale project developments and disputes.  She is also skilled in managing and documenting complex transactions and commercial contracts.

Maha holds a Master of Laws, a Bachelor of Laws (Honours), and a Bachelor of Science. She joined Macmahon in 2021 and was appointed General Counsel in January 2022 and Company Secretary in January 2024. She has authored several published, peer reviewed academic papers and articles.