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Jinsu Jeong
Managing Partner

- TEL 82 2 6003 7103
- FAX 82 2 6003 7013
- E-MAIL jsjeong@hwawoo.com
Biography
Jinsu Jeong is a managing partner at Yoon & Yang LLC, and his primary practice areas include corporate-related civil and criminal litigation, commercial disputes, corporate governance, and government relations advisory.
Mr. Jeong began his career as a judge at the Seoul Civil District Court and subsequently served in various courts including the Seoul District Court and the Seoul Western District Court. During his tenure as a Judicial Researcher at the Supreme Court of Korea, he was part of the Commercial Law Research Division, where he specialized in corporate-related disputes, including securities, insurance, and management control cases. In addition to his judicial service, he has served as a professor at the Judicial Research & Training Institute and as an adjunct professor at Korea University School of Law and Sungkyunkwan University Law School, as well as a lecturer at Seoul National University School of Law. He has extensive experience handling high-profile cases, including financial derivative disputes such as the KIKO and ELS cases, securities law violation cases, corporate embezzlement and breach of fiduciary duty matters, and major management control disputes involving leading conglomerates.
Mr. Jeong began his career as a judge at the Seoul Civil District Court and subsequently served in various courts including the Seoul District Court and the Seoul Western District Court. During his tenure as a Judicial Researcher at the Supreme Court of Korea, he was part of the Commercial Law Research Division, where he specialized in corporate-related disputes, including securities, insurance, and management control cases. In addition to his judicial service, he has served as a professor at the Judicial Research & Training Institute and as an adjunct professor at Korea University School of Law and Sungkyunkwan University Law School, as well as a lecturer at Seoul National University School of Law. He has extensive experience handling high-profile cases, including financial derivative disputes such as the KIKO and ELS cases, securities law violation cases, corporate embezzlement and breach of fiduciary duty matters, and major management control disputes involving leading conglomerates.
Practice Areas
Experience
- 2018-present Yoon & Yang LLC
- 2021-present Adjunct Professor, Sungkyunkwan University School of Law
- 2019-present Vice Chairperson, Audit Committee, Supreme Court
- 2010-present Member, Deliberation Committee, Telecommunications Complaint Mediation Center, Korea Information and Communication Industry Association
- 2018-22 Auditor, Korean Volleyball Federation
- 2017-20 Outside Director, Korean Air
- 2011-13 Visiting Professor, Seoul National University School of Law
- 2010-20 Member, Human Rights Committee, Seoul Metropolitan Police Agency
- 2010-12 Adjunct Professor, Korea University School of Law
- 2009-11 Professor, Judicial Research & Training Institute (Civil Attorney Practice)
- 2005-07 Judicial Researcher, Supreme Court (Commercial Joint Research Group)
- 2002-05 Judge, Seoul Western District Court
- 2000-02 Judge, Seoul District Court
- 1997-00 Judge, Jeonju District Court, Gunsan Branch (Iksan City Court Judge; Chairman of Iksan City Election Commission)
- 1995-97 Judge, Seoul District Court, Dongbu Branch
- 1993-95 Judge, Seoul District Civil Court
Education
- 2003-04 Harvard Law School (Visiting Scholar)
- 1993 Judicial Research & Training Institute
- 1985 Seoul National University College of Law (LL.B.)
Qualifications
Admitted to bar, Korea (1993)
Representative Matters
- Prevailed in the terrestrial broadcasting retransmission lawsuit
- Prevailed in litigation concerning Equity-Linked Securities (ELS)
- Prevailed in the Hanjin Group ownership dispute
- Prevailed in the Kumho Petrochemical Group control dispute
- Prevailed in the KIKO financial lawsuit
Languages
Korean and English