Jeong Ran Lee

Ms. Jeong Ran LEE is a managing partner at D&A LLC and the head of the Antitrust & Competition Practice Group. Her practice is primarily focused on Antitrust & Competition, Corporate Law, Administrative Procedure & Litigation, Environmental, Social & Governance (ESG), and the Serious Accidents Punishment Act.

Ms. Lee has extensive experience advising on domestic and foreign cartel cases, abuse of market dominance, and general unfair trade practices, and worked on deliberations by the Korea Fair Trade Commission and handled legal representation. In addition, she dealt with a number of cases regarding violations of the Fair Transactions In Franchise Business Act, the Act On Fair Transactions In Large Retail Business, the Fair Agency Transactions Act, the Act on Fair Labeling and Advertising, and the Fair Transactions In Subcontracting Act, and was successful in administrative litigation regarding the Monopoly Regulation and Fair Trade Act. She provides a wide range of advisory services relating to prominent domestic companies, even in the realm of compliance, which has recently been gaining attention from businesses.

Mr. Lee has served as a subcommittee member of the Dispute Mediation Council Committee at the Large and Small Business Farming and Fisheries Cooperation Foundation since 2019, and as a member of the Private Review Committee for Re-Reported Cases at the KFTC since December 2020.

- Managing Partner, D&A LLC (2022-Present)

- D&A LLC (2019-2022)

- Attorney, YOON & YANG LLC (2012-2019)

- Attorney, Barun Law LLC (2008-2012)

- Judicial Research and Training Institute of the Supreme Court of Korea (2008)

- Implications of the KFTC's Organizational and Investigative Reform and Corporate Responses, AMCHAM Journal (3rd Quarter, 2026, Vol. 93, No. 3) (Co-author, 2026)

- Regulatory Trends Against Online Platforms In Korea: Focusing On Competition Law Issues, Mondaq (2022)

- Competition (private company acquisitions) Q&A: South Korea, Practical Law, Thomson Reuters (Co-author, 2021)