The Legal 500

Twitter Logo Youtube Circle Icon LinkedIn Icon
Work +82 2 3703 1114

Myungsuk Sean Choi

Work +82 2 3703 1637
Kim & Chang

Work Department

Corporate Investigations & White Collar Defense, Anti-Corruption & Corporate Compliance, Privacy & Data Security, Health


Myungsuk Sean Choi is an attorney who is leading Kim & Chang’s Corporate Investigations & White Collar Defense Practice and the Anti-Corruption & Corporate Compliance Practice. 
Mr. Choi’s practice focuses on white collar criminal defense, anti-corruption, and regulatory compliance issues. He also has extensive experience in advising clients on compliance, internal corporate audits, crisis management, and digital evidence discovery. Mr. Choi also assists and advises clients on internal investigations to determine compliance with applicable laws and regulations (including issues regarding the Foreign Corrupt Practices Act). 
Mr. Choi joined the firm after a distinguished 12-year career as a prosecutor. He was involved in many complex criminal investigations including white collar crime and intellectual property infringement cases. He represented the Korean Government at the Working Group Conferences for the OECD Anti-Corruption Convention. In addition to his experience as a prosecutor, Mr. Choi worked at several law firms serving as a counsel for major domestic and foreign corporations in regulatory disputes and criminal cases. 
Mr. Choi frequently gives presentations and delivers speeches at many international anti-corruption conferences, including the Second Asia Anti-Corruption Congress in 2009 and Singapore Summit on Anti-Corruption Compliance in 2012. In July of 2013, Mr. Choi gave a presentation titled “Localizing Your Gifts and Entertainment Policy to Match Market Risks in ASIA: Gift and Entertainment Policies in South Korea” at the Fourth Global Forum Anti-Corruption Compliance in High Risk Markets. In 2015, Mr. Choi was recognized as one of the leading individuals in the area of White Collar Defense practice by Chambers Asia-Pacific, a law firm directory published by Chambers and Partners. For three consecutive years from 2016, Chambers Asia-Pacific has listed Mr. Choi as a first-rank White Collar Defense attorney. 
Mr. Choi received his LL.M. from Harvard Law School in 1996 and his LL.B. from Seoul National University College of Law in 1985. He completed his two-year training at the Judicial Research and Training Institute of the Supreme Court of Korea in 1989. Mr. Choi is admitted to practice in Korea and the State of New York. 


Korean and English


Admitted to bar, Korea, 1989; New York, 2005


Harvard Law School (Visiting Scholar, 2003-2005)
College of Law, Seoul National University (Internet and Law Program for Professionals, 2001)
Harvard Law School (LL.M., 1996)
Judicial Research and Training Institute of the Supreme Court of Korea (1989)
Graduate School of Law, Seoul National University (Completed Coursework, LL.M., 1987)
College of Law, Seoul National University (LL.B., 1985)

South Korea: Regulatory: compliance and investigations

Regulatory: compliance and investigations – Local firms

Within: Regulatory: compliance and investigations – Local firms

With its strong forensic capabilities, Kim & Chang’s multi-disciplinary practice is a favourite with international businesses seeking assistance with compliance issues. Head of the corporate investigations and white-collar defence Kook Hyun Yoo is working alongside Seung Ho Lee, Ho-Keun Ryu, and Michael Yu in defending Audi Volkswagen Korea against investigations by multiple Korean agencies in connection with the "Diesel Gate" scandal for vehicles imported into the Korean market. Other key contacts are Myungsuk Sean Choi for white-collar criminal defence, anti-corruption and regulatory compliance; Dong Min Cha leads in corporate crime and insider trading; Hankyu Kim is highly experienced in internal investigations and leading criminal cases. Sung Gwan Chun acts in cases involving Korean conglomerates, while Byung Suk Lee’s expertise lies in securities fraud and insider trading. In non-contentious matters, Yu advised Lotte Chilsung Beverage in negotiating compliance provisions in a distribution and joint venture agreement with a multinational beverage corporation.

[back to top]

Back to index

Legal Developments by:
Kim & Chang

Legal Developments in South Korea

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to