Chaeseung “James” Lee


TEL. 02-538-5886

FAX. 02-538-5887


James is a partner of OhKims Law who specializes in civil and criminal litigation with extensive trial and appellate experience. James has represented clients in white-collar criminal cases and civil cases on management disputes. He also has expertise on litigation issues related to cryptocurrency and blockchain. During his practice, James successfully represented a client in an appeal to the Supreme Court on a management dispute. James also successfully argued the unconstitutionality of regulations on brokerage compensation to the Constitutional Court.


2019  OhKims Law & Company

2017   Ohkims Law Office

2017   Law Office Etos

2014   Law Office Barun


2014   Korea University Law School (J.D.)

2007   Korea University (B.A. in Law)



  • Advisor on cases regarding fraud and labor law violations.
  • Conducted Litigation related to stock purchases for financial companies.
  • Advised development company on real estate development plan.
  • Advised company on cryptocurrency exchange hacking litigation.


  • Advised client on cryptocurrency exchange-related complaint. Advised pharmaceutical company in administrative hearings.
  • Represented client in arbitration hearings related to the hacking of a cryptocurrency exchange.
  • Conducted M&A consultations for an entertainment company.
  • Represented plaintiffs in class action lawsuit against dental company.


  • Numerous cases regarding the infringement of the right to sunlight (Disputes in Shin-Gil Housing Development Areas), inheritance disputes involve claims made regarding estates, wills, and trusts.
  • Represented client in front of Supreme Court of Korea regarding determining the status of directors and auditors.
  • Represented clients in case of violation of trade secrets by retired executives.
  • Represented the Ministry of Government Administration in a lawsuit over the disposition of a foundation and illegal executive appointment. 


  • Filed application with the Constitutional Court over the unconstitutionality of brokerage remuneration limit regulations.
  • Consulted for various government agencies, including the Ministry of Land, Infrastructure and Transport on investment cancellations.


2014   Korean Bar Admission (3rd Korean Attorney Examination)


Korean (Native), English (Fluent)

OhKims Law & Company 
CEO: Sungheon Oh, Yongbeom Kim, Changho Choi       

Business Licence: 349-81-01238

Seoul Office: 6,11th floor, Seongdo Building, Dosan-daero 207, Gangnam-gu, Seoul

Contact: 02-538-5886

Personal Information Manager: Inheok Song

Copyright ⓒ 2021 All Rights Reserved.

OhKims Law & CompanyCEO: Sungheon Oh, Yongbeom Kim, Changho Choi    Business Licence: 349-81-01238

Seoul Office: 6,11th floor, Seongdo Building, Dosan-daero 207, Gangnam-gu, Seoul  

Contact: 02-538-5886

Personal Information Manager: Inhyeok Song

Copyright ⓒ 2021 All Rights Reserved.