Profile

Mevelyn Ong was a Senior Associate at Sullivan & Cromwell in New York. Her practice focused on international dispute resolution, and she has particular expertise advising and managing international disputes and crises that implicate issues of political risk, corruption/transnational criminality, ESG/BHR considerations, and international law.

Ms. Ong has represented clients around the world from diverse industry sectors in international commercial and investment treaty arbitrations administered under the major arbitral rules, as well as conducted on an ad hoc basis. She is also experienced in advising on the drafting of dispute resolution clauses in complex multi-party and multi-contract situations. She has additionally represented large financial institutions and multinational companies in multi-jurisdictional sanctions, anti-money laundering, and anti-corruption investigations.

Ms. Ong also previously worked in Australia and East Asia, including as Deputy Counsel to the Secretariat of the ICC International Court of Arbitration. She is dual-qualified to practice in both New York and Australia, and holds Bachelors of Laws/Arts (LL.B/BA) with First Class Honours from the University of Melbourne (Australia), a Certificate in Global Arbitration Law and Practice from Queen Mary, University of London (U.K.) and a Masters of Law (LL.M) from Columbia University (U.S.A).