LAWYER PROFILE
Jeong-Ho Sun

Jeong-Ho Sun

Asia-Pacific 2026

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Ranked in 1 practice area

About

Provided by Lee & Ko

Practice Areas

Jeong-Ho Sun is a partner at Lee & Ko, and the Co-head of Antitrust & Competition Group of Lee & Ko as well as the Co-head of Platform Regulation Team of Lee & Ko. He advises clients on all matters relating to antitrust and competition laws of South Korea. He has handled various international cartel cases, such as Optical Disk Drive cartel, auto parts, display product and maritime car carriers. He also has been involved in many international and complex merger filing cases, including various joint venture projects by electric batteries and related product manufacturers, and many acquisitions in the field of broadcasting and telecommunication companies. He is one of the top practitioners in the areas of multi-jurisdictional merger filings and cross-border transactions.

Career

Jeong-Ho Sun worked for Steptoe & Johnson LLP, Washington DC Office as a foreign legal consultant during the period of 2013 ~ 2014.

Jeong-Ho Sun has been serving as an Executive Committee member of Asia-Pacific Competition Community (APCC) since 2020.

Jeong-Ho Sun has been serving as Vice Chair of LAWASIA, Antitrust & Competition Law Committee since 2021.

Jeong-Ho Sun participated as a member of Merger Filing Legislation Advisory Committee of the Korea Fair Trade Commission (KFTC) in 2022.

Jeong-Ho Sun has been a member of International Competition Network, Merger Working Group

Professional Memberships

Korean Bar Association, Seoul Bar Association, New York Bar Association

Publications

'Practical issues regarding Failing Firm Defenses in Merger Control', Journal of Competition Vol 205 (November 2020)

Antitrust regulation on Product Hopping', Journal of Competition Law and Policy Vol 7 (October 2016; co-authored with Jang-Hyun Ka)

'Practical issues regarding multi-jurisdictional merger filing', Journal of Competition Vol 186 (June 2016; co-authored with Juntaek Lee)

'An Analysis of the Casual Connection Between Antitrust Violation and Damages Under the Monopoly Regulation and Fair Trade Act of Korea: Focusing on the U.S. Perspective', Lawyers Association Journal

Education

University of California, Los Angeles, School of Law

LL.M.

2012 - 2013

Seoul National University

LL.B.

1994 - 1999

Chambers Review

Provided by Chambers

Chambers Asia & Pacific

Competition/Antitrust - South Korea

Band 3
Band 3

Individual Editorial

Sun Jeong-Ho has a broad offering in competition and antitrust, with notable expertise in advising on merger filing cases. He is also equipped to handle KFTC investigations concerning abuse of market dominance and unfair trade practice issues.

Strengths

Provided by Chambers

  • Sun Jeong-Ho is easy to communicate with and understands the company's needs well.

    Competition/AntitrustChambers Asia & Pacific
  • Jeong-Ho takes a proactive approach by staying ahead of regulatory trends from competition authorities and informing us of potential issues.

    Competition/AntitrustChambers Asia & Pacific

Ranked Individuals at Lee & Ko (76)

North Korea

South Korea

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