Cameron Sim is an associate in the firm’s International Dispute Resolution Group, resident in Hong Kong. His practice focuses on international arbitration, investor-state disputes, and complex multi-jurisdictional litigation. Tri-qualified in New York, England & Wales, and Australia, he previously clerked for the President of the UK Supreme Court and practised from a Magic Circle firm. Mr. Sim is recognised as a Future Leader in international arbitration by Who’s Who Legal (2021).

Mr. Sim represents clients across a range of industries, including banking and finance, construction, energy, pharmaceuticals, private equity, and telecommunications. He was previously seconded in-house at a major international oil and gas company. Mr. Sim conducts arbitrations under all major arbitral rules, governed by various substantive and procedural laws across multiple jurisdictions. He also advises on the resolution of international disputes in the English courts, and on the recognition and enforcement of arbitral awards worldwide. Mr. Sim currently serves as the Asia Chair for the Institute for Transnational Arbitration’s under-40 group (the Young ITA). Following an advocacy secondment to the Free Representation Unit, Mr. Sim also maintains an active pro bono practice.

During his year at the Supreme Court of the United Kingdom and the Judicial Committee of the Privy Council, clerking for the President, Lord Neuberger of Abbotsbury, Mr. Sim was involved in cases of great significance for international dispute resolution. These included R (on the application of Prudential plc) v Special Commissioner of Income Tax [2013] UKSC 1 (scope of legal advice privilege), VTB Capital plc v Nutritek International Corp [2013] UKSC 5 (service out of the jurisdiction and forum conveniens), Prest v Petrodel [2013] UKSC 34 (the scope of the principle of piercing the corporate veil), and AES Ust-Kamenogorsk Hydropower Plant LLP v Ust-Kamenogorsk Hydropower Plant JSC [2013] UKSC 35 (the availability of anti-suit injunctions in support of arbitration agreements).

Mr. Sim regularly writes and speaks on legal issues. His work is frequently cited by commentators, including in the leading English law treatise on private international law. Recent publications include “Investment Treaty Arbitration in the Asia-Pacific,” Global Arbitration Review: The Asia-Pacific Arbitration Review (July, 2020); the Hong Kong chapter in the Global Arbitration Review publication, The Guide to Challenging and Enforcing Arbitration Awards (April, 2020); “The application of transparency,” Transparency in International Investment Arbitration (Cambridge University Press, 2015); “Choice of Law and Anti-Suit Injunctions: Relocating Comity,” International & Comparative Law Quarterly (2013); “Expert Witness Immunity After Jones v Kaney,” Torts Law Journal (2011); “Non-Justiciability in Australian Private International Law: A Lack of ‘Judicial Restraint’?,” Melbourne Journal of International Law (2009). His recent speaking engagements include “Interim Measures and Emergency Arbitration in Practice” (Associazione Italiana per l’Arbitrato and YICCA, Rome, October 2016); and “Transparency in Investment Arbitration” (Commercial Law Centre, University of Oxford, November 2015).

Mr. Sim graduated from the University of Melbourne with a BA/LLB (First Class Honours) in 2009. He was awarded an Allan Myers scholarship to complete a Masters study at the University of Oxford in 2012 (BCL, Distinction), where his studies focused on private and public international law. In addition, Mr. Sim previously served as research assistant at the Oxford Law Faculty’s Institute of European and Comparative Law, and at Melbourne Law School’s Centre for Corporate Law & Securities Regulation.

Mr. Sim was admitted as an Australian Lawyer of the Supreme Court of Victoria and a Solicitor and Barrister of the High Court of Australia in 2010, as a solicitor of the Senior Courts of England & Wales in 2011, and as an Attorney and Counsellor at Law in the State of New York in 2016.


  • University of Oxford, 2012, BCL (distinction)
  • University of Melbourne, 2009, B.A.
  • University of Melbourne, 2009, LL.B. (First Class Honours)

Bar Admissions

  • Solicitor, England & Wales
  • New York
  • Hong Kong