Junsuk Lee is an associate in Ropes & Gray’s litigation and enforcement practice group. Junsuk focuses his practice on representing clients in laws and regulations governing international trade and cross-border investment. He regularly advises clients on various U.S. trade laws, including economic sanctions and export controls. He also advises regulatory compliance matters in connection with trade laws and assists with clients’ internal investigations and government investigations by various U.S. governmental agencies related to these laws. In addition, he assists clients in navigating complex laws and regulations related to the Committee on Foreign Investment in the United States (CFIUS) and anti-corruption matters. 

Prior to joining Ropes & Gray, Junsuk worked at two other global law firms in their Washington, D.C. offices as part of their international trade practice groups, focusing on U.S. trade control laws. During law school, he was an executive editor of the Georgetown Journal of International Law and worked on promoting human rights in the global supply chains of U.S. government procurement as part of the Policy Clinic of the Harrison Institute for Public Law. He also had working experience in various organizations with international influence, including the United Nations Development Programme.


  • Advises international clients across diverse industry sectors on potential economic sanctions and export control risks in contemplated international trade and investment transactions.
  • Conducts anti-corruption, economic sanctions, and export control due diligence and risk analysis in connection with a variety of cross-border transactions and investments.
  • Represents multinational financial, investment, bio, medical, pharmaceutical, software, energy, and other companies in strategizing their compliance programs appropriate to differing risk levels from the economic sanctions and export control perspectives.
  • Represented clients in U.S. governmental investigations with respect to apparent economic sanctions and/or export control violations for favorable settlement results and implementation of remedial actions for future compliance, including development or enhancement of compliance measures.*
  • Conducted clients’ internal investigations on compliance matters to identify potential economic sanctions and/or export control violations in clients’ business and/or gaps in clients’ compliance policies/procedures to enhance such policies/procedures.*
  • Assisted clients in U.S. government filings with respect to economic sanctions and/or export controls, including voluntary self-disclosures, required reporting, license applications, formal export control classification requests, and requests for blocking and unblocking assets.*
  • Represented clients in economic sanctions, export controls, anti-corruption, and CFIUS due diligence and contractual compliance provision drafting processes in connection with various deals, such as mergers & acquisitions, initial public offerings, security purchase agreements, and other capital market deals.*

*Prior to joining Ropes & Gray

Areas of Practice