Mark practices broadly in the fields of Commercial Litigation, Dispute Resolution and South African Competition Law. Mark has advised clients in private arbitrations and in matters in the High Court, Competition Tribunal, Companies Tribunal, Supreme Court of Appeal, and Constitutional Court.

Mark commenced his career in October 2012 at a highly regarded boutique law firm in Sandton specialising in regulatory work, strategic litigation, and competition law. Mark joined Tabacks in January 2015 and was appointed as a Director in 2018.


Litigation and Dispute Resolution:

  • Successfully representing a bus transport company in an arbitration against the North West government in respect of a R63 million claim arising from the 2009 conversion from CPIX to CPI

  • Representing a large South African chemical company in an environmental liability dispute

  • Representing a chrome recovery company in a construction dispute

  • Representing a property developer in defending an administrative decision authorising it to build over 1 000 high-end residential units

  • Representing a large South African electronic equipment manufacturing company in a fraud and forensic investigation

  • Rendering a wide range of dispute resolution advice to a transport and logistics company operating throughout Southern Africa

Competition Law:

  • Advising and representing the merging parties in a large merger in which Bongicel (Pty) Ltd, ultimately controlled by the Royal Bafokeng Trust, acquired Lusitania (Pty) Ltd (LM224Jan16)

  • In two separate unrelated mergers, assisting a Chinese and Indian based mining company notify the competition authorities of their intention to acquire assets and enter the local market

  • In separate unrelated investigations, advising a diamond mining company, an electronic equipment company, and a battery distributor in investigations of alleged anti-competitive conduct


  • UNISA (2011)

  • LLM, UNISA (2013)

  • “Legal writing for litigation”, LSSA (2014)

  • Competition Economics Winter School: Centre for Competition, Regulation and Economic Development (2014)

  • Post Grad Competition Law Certificate Course, University of the Witwatersrand (2016)

Events & Publications

  • MG Thomas “Why the fuss? Cartel members face damages claims” Polity.Org, Legal Brief (2016)

  • MG Thomas “Cross directorships pose anti-competitive headache for company boards”, Business Brief (2016)

  • MG Thomas and L Quilliam “Weapon of choice: section 8(c) versus section 9”, Without Prejudice Vol 14 No 8. (2014)

  • MG Thomas “Legal Services Study Guide”, Milpark Business School (2013)

Related Articles