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Board of Directors

The Board of Directors consists of a non-executive Director and Chair (Mr Howard Stack), and non-executive Directors (Dr Philip Dubois, Dr Charles Ho, Mr Justin Schaffer, Mr Richard Aird, Mr Jonathan Schaffer (Alternate Director to Mr Justin Schaffer) and Mr Thomas Stack (Alternate Director to Mr Howard Stack)).


The Directors bring to Magnetica a broad range of public company, growth and manufacturing experience, together with expertise in diagnostic imaging (including practicing radiologists from Australia and the US) and extensive technological understanding of MRI.

Non-Executive Director and Chair
Howard Stack  (BA, LLB)

Mr Stack is a leading professional corporate director with significant experience in high growth corporations. He has previously served as Chairman of Australian National Industries, Data #3 Limited, Southern Cross Pumps and Irrigation, Voxson Limited, and Eastern Corporation Limited, and as a director of Waratah Coal Inc. and Flight Centre Limited. He has served as both Chairman and Deputy Chairman of ASX listed Redflow Limited.


Mr Stack had a long and highly successful career as a partner in the Brisbane based commercial law firm Feez Ruthning from 1969, and was its Managing Partner from 1992 until its merger with Allen Allen and Hemsley in 1996. He retired from Allens in 2001.


In the community he has been Chairman of Brisbane Grammar School Board of Trustees from 1991 to 2019, and served as a Director of Queensland Events Corporation from 1996 to 1998.

Non-Executive Director
Dr Philip Dubois  (MBBS, FRCR, FRANZR, FAICD) – Radiologist

Dr Dubois is a Director of ASX listed Sonic Healthcare Ltd. He is a neuro-radiologist and nuclear imaging specialist having spent ten years in academic radiology in the United States. He is the author of over fifty scientific publications and has been an invited speaker at many national and international conferences in the field of diagnostic radiology.


Dr Dubois is currently an Associate Professor of Radiology at the University of Queensland Medical School. He has represented his profession on numerous government and craft group committees.

Non-Executive Director
Dr Charles Ho  (MD, PhD) – Radiologist

Dr Ho is experienced and active in musculoskeletal and orthopaedic sports medicine imaging and research, particularly in musculoskeletal Magnetic Resonance Imaging. He has been a member of the Radiological Society of North America, the American Roentgen Ray Society, the Society of Skeletal Radiology, the American Academy of Orthopaedic Surgeons, the American Orthopaedic Society for Sports Medicine, and the ACL Study Group, among other professional organizations. He has published numerous papers and book chapters in the radiologic and orthopaedic literature and presented numerous papers internationally in radiologic and orthopaedic conference proceedings.


Dr Ho is Professor of Radiology, University of Colorado School of Medicine, in Aurora, Colorado.  He is Director of Imaging Research and a member of the Research Advisory Committee of the Steadman Philippon Research Institute in Vail, Colorado. He has served as Radiologic Consultant for the San Francisco 49ers, San Francisco Giants, Cleveland Indians, U.S. Ski Team, U.S. Decathlon Team, Denver Broncos, Colorado Rockies, and Denver Nuggets.


Dr Ho received his BS and MS in Electrical Engineering from MIT, PhD in Electrical Engineering from Stanford University, and MD from Stanford University School of Medicine.

Non-Executive Director
Justin Schaffer  (BA (Econ), MBA)

Mr Schaffer has a depth of business experience internationally, as a Chairman, Executive Director and CEO of numerous large organisations. He is familiar with technology start-ups and has founded and run several successful high-tech companies. He is a Non-Executive Director for a number of high-tech start up companies in South East Queensland. Early in his career, as a shareholder and CEO of Duropenta Plastics, he built the company to become the largest plastics manufacturer in South Africa. As CEO when this business was sold to AECI Ltd, he set up a Joint Venture with French and Israeli partners to establish a Drip Irrigation business in Spain and U.S.A.


As CEO of South African Nylon Spinners Ltd. Mr Schaffer grew the company to become the largest producer of nylon and polyester yarns, fibres and PET polymer in the southern hemisphere and one of the most profitable synthetic fibre businesses in the world. Later in his career Mr Schaffer ran, re-structured and restored profitability to the Frame Group. In 1993 he and four partners started Tracker Network Ltd, a stolen vehicle recovery business using technology from LoJack Corp., USA. The company now has sales revenues exceeding A$500million p.a. He and his partners continue to serve as non-executive directors.

Non-Executive Director
Richard Aird

Mr Aird became Magnetica CEO in July 2013, and was appointed as a Director in May 2015. He held the position of Managing Director until 29 October 2017. He continues with Magnetica as a non-executive director.


Mr Aird is a professional operations manager with over twenty years’ experience in commercial development and operations. He is currently the Chief Operating Officer at Redflow Limited. Prior to joining Magnetica, he spent five years as executive operations manager at Redflow, working with the product development, prototype deployment and commercialisation of technology within the electrochemical and plastics industry. This included demonstration projects, establishment of pilot manufacturing, quality systems, and scoping of outsourced manufacturing opportunities both offshore and in Australia.

Non-Executive Alternate Director
Jonathan Schaffer

Mr Schaffer joined the Magnetica board in 2016 as an alternate to Mr Justin Schaffer.


Having qualified as a Chemical Engineer, Mr Schaffer worked for four years in South Africa’s nuclear industry in the Uranium Enrichment Corporation facility near Pretoria. Thereafter he joined a boutique agency business importing chemicals and plastics before emigrating to the UK in 1985. After working with an international trading company specialising in barter and counter trade operations, he started his own trading business in 1988. The company later specialised in the toy industry, created its own brand and changed its name to Plum Products Ltd.


Mr Schaffer migrated with his family to Australia in 2009 and established Plum Products Australia Pty Ltd as a sister company to the UK company, and later Plum Products Hong Kong Ltd. Today, Mr Schaffer is Chairman of the same business. The group has sales under its Plum brand of activity toys in excess of US$20M in more than 40 countries, employing about 50 full time staff in four countries.

Non-Executive Alternate Director
Thomas Stack

Mr Stack joined the Magnetica board in 2020 as an alternate to Mr Howard Stack.


Mr Stack is an experienced corporate lawyer specialising in public and private acquisitions, disposals and joint ventures. He has practiced law in Melbourne at Blake Dawson Waldron (now Ashurst), in London at Linklaters and in Sydney and Brisbane at the US firm Jones Day.


Mr Stack has strong experience advising on cross-border transactions, having advised companies on corporate transactions in the United States, the United Kingdom, France, Germany, the United Arab Emirates, Singapore, South Africa and Australia. He can also advise companies and boards on their corporate governance and disclosure obligations (both in Australia and in the United Kingdom).

Company Secretary
Stephen Denaro  (BA, Grad Dip (Corporate Governance), CA, MAICD)

Mr Denaro has extensive experience in mergers and acquisitions, business valuations, accountancy services, and income tax compliance gained from positions as Company Secretary, Chief Financial Officer and Non-Executive Director of various public companies, and with major chartered accountancy firms in Australia and the United Kingdom. He provides Company Secretarial services for a number of start-up technology companies.


Mr Denaro has a Bachelor of Business in Accountancy, Graduate Diploma in Applied Corporate Governance, and is a member of the Institute of Chartered Accountants in Australia, and the Australian Institute of Company Directors.