YOON&YANG

Junsang Lee Managing Partner

TEL 82 2 6182 8512
FAX 82 2 6003 7010
E-MAIL junslee@yoonyang.com

Junsang Lee is a managing partner at Yoon & Yang LLC, and his main practice areas include international arbitration & litigation, corporate civil & criminal litigation, insolvency, constitutional law, and administrative law.
From 1994 to 2013, Mr. Lee served as a judge for lower courts and as a presiding judge at the Suwon District Court, during which he handled bankruptcy and administrative cases and was also dispatched to the Constitutional Court. He researched alternative dispute resolution during his overseas study, and also served as a member of the Korean delegation to the Vienna Conference of the UNCITRAL Working Group 2 (Arbitration) from 2009 to 2011. After joining Yoon & Yang in 2013, Mr. Lee has been an arbitrator at the KCAB and a KOCIA board member. He also represents domestic and foreign companies on international arbitration cases pending before international arbitration bodies including (e.g., ICC, LCIA, SIAC, HKIAC, and AAA), and handles international litigations for major foreign companies.

Practice Areas

Experience

2013-present Yoon & Yang LLC
2025-present Elected Director, Board of Directors, Korean Commercial Arbitration Board
2022-present Member, Government Litigation Advisory Committee, Ministry of Justice
2022-present Member, Finance Committee, Seoul National University
2021-present Member, Information Disclosure Deliberation Committee, Seoul Bankruptcy Court
2021-present Advisor, Anticorruption and Compliance Academy, Institute for Legal Studies, Yonsei University
2021-present Member, International Arbitration Committee, Korean Commercial Arbitration Board
2019-present Member, Advisory Board, Korea Anti-Doping Agency
2017-present Legal Advisor, Gwangmyeong City Council
2017-present Mediator, Seoul Bankruptcy Court
2015-present Advisory Member, Legal Counsels for Small and Medium Business Overseas Expansion, Ministry of Justice
2013-present Board Member, Korean Council for International Arbitration
2013-present Arbitrator, Korean Commercial Arbitration Board
2012-present Member, International Investment Arbitration Forum, Korean Commercial Arbitration Board
2011-present Lecturer, International Arbitration Expert Program (Approval & Execution of Arbitration Award and Practice of Trials), Korean Commercial Arbitration Board
2007-present Member, Labor Law Practice Society, Supreme Court
2021-22 Member, Advisory Committee on Administrative Litigation, Ministry of Justice
2019-21 Member, Special Subcommittee on International Legal Affairs, Legal Advisory Committee, Ministry of Justice
2015-16 Commissioner, International Committee at Korean Bar Association
2013-15 Lecturer, Seoul National University School of Law
2012 Member, Task Force for Amendment to the Arbitration Act, Ministry of Justice
2011-13 Chairman, Uiwang Election Supervision Commission
2010-13 Presiding Judge, Administration/Bankruptcy Department, Suwon District Court
2009-11 Government Delegate, Vienna Conference of the UNCITRAL Working Group 2 (Arbitration)
2009-10 Presiding Judge, Criminal Appeal Department, Gwangju District Court
2008-09 Judge, Seoul Central District Court
2006-08 Judge, Seoul High Court (Dispatched to the Constitutional Court)
2005-06 Judge, Seoul High Court
2004-05 Judge, Seoul Central District Court
2003-04 Visiting Scholar, University of California, Berkeley
2002-03 Judge, Seoul Central District Court (Mediation Judge)
2000-02 Judge, Suwon District Court
1998-00 Judge, Gwangju District Court, Mokpo Branch
1996-98 Judge, Seoul District Court, Northern Branch
1994-96 Judge, Suwon District Court

Education

2011 Yonsei University Graduate School of Law, Advanced Course on Management Policy and Law
2003-04 UC Berkeley, Visiting Scholar
1994 Judicial Training & Research Institute
1989 Seoul National University College of Law, LL.B.

Qualifications

Admitted to bar, Korea (1994)

Representative Matters

Represented a global turbine manufacturer in the LCIA arbitration against a domestic construction company regarding the supply of turbines
Represented a foreign tobacco manufacturer in the case seeking damages arising from product liability
Represented a foreign IT company in the case seeking revocation of the Korean Fair Trade Commission’s corrective order and penalty surcharge disposition related to a telecommunications patent
Represented a Korean steel company in the ICC’s international arbitration case with a European company regarding the cancellation of a supply contract
Represented a Korean manufacturer in the ICC’s international arbitration case with a European company regarding a license fee
Represented a Korean public entity in the ICC’s international arbitration case with foreign investment companies (Hong Kong) regarding the rescission of an investment agreement
Represented a Korean IT company in the SIAC’s international case with a Singaporean company regarding a supply contract
Represented a Korean company in the SIAC’s international case with a Singaporean company regarding a goods supply contract
Represented a Korean company in the HKIAC’s international arbitration case with a Chinese company regarding a goods supply contract
Represented a Korean company in the AAA’s international arbitration case with an American company regarding the recission of an investment agreement
Represented a Korean company in the DIS’s international arbitration case with a Russian company regarding a transport agreement
Represented a Korean manufacturer in the KCAB’s international arbitration case with a Taiwanese company regarding a game license agreement
Represented a Korean company in the KCAB’s international arbitration case with a Chinese company regarding an exclusive agency agreement
Represented an American manufacturer in the KCAB’s international arbitration case with a Korean insurance company regarding indemnification arising from a product defect
An ISDS case between a U.S. national and the Korean government related to eminent domain

Awards

Leading Lawyer, Dispute Resolution: Arbitration, Chambers and Partners Global (2021-2025)
Leading Lawyer, Dispute Resolution: Arbitration, Chambers and Partners Asia-Pacific (2020-2025)
Stand-out Lawyer, Thomson Reuters (2025)
Litigation Star, International arbitration, Benchmark Litigation Asia-Pacific (2020-2025)
Distinguished Practitioner, Dispute resolution, asialaw (2020-2023/24)
Dispute Resolution Star, International arbitration, Benchmark Litigation Asia-Pacific (2018-2019)
National Leader, Arbitration, Who’s Who Legal (2020-2023)
Ministerial Commendation, Ministry of Justice (2018)
Lawyer of the Year, International Dispute Resolution, Legal Times (2016)

Publications

Korea Chapter, Investment Treaty Arbitration, Lexology Panoramic, Law Business Research (Co-author, 2024)
Parallel Proceedings in the Context of ISD Arbitration, The Investment Treaty Arbitration Edition, Law Business Research (Co-author, 2021-2023)
Korea Chapter, The International Arbitration Review, Law Business Research (Co-author, 2023)
Korea Chapter, Corporate Insolvency & Restructuring Report 2020: COVID-19 Special Focus, International Financial Law Review (Co-author, 2020)
Korea Chapter, International Arbitration, Chambers Global Practical Guide, Chambers and Partners (Co-author, 2018-2019)
Korea Chapter, Global Arbitration Review: The Asia-Pacific Arbitration Review, Law business Research (Co-author, 2014, 2016, 2018, 2019)
Korea Chapter, Investor-State Arbitration, The International Comparative Legal Guide, Global Legal Group (Co-author, 2018)
A Study on Participation Issues of the Court in Arbitration Procedures, Research service report requested by the Ministry of Justice (2013)
Current Status of Corporate Rehabilitation Cases and Legal Interests, Gyeonggi Legal Journal (2012)
Legal Construction Issues of the Subjects for the Special Measure Act of Compensation for the Land Incorporated into River, Etc., Trial Practice Study of Suwon District Court (2012)
Korean Courts’ Attitude and Practice in Relation to Arbitration, Korean Arbitration Review (2012)
Approval of Arbitration Award, Trial Practices and Enhancement thereof in Korean Courts: Current Status and Forecast of International Rules, National Court Administration (2011)
Preliminary Injunctions in Constitutional Trials: Relating to Recent Enactment Discussions, Judiciary Journa (2010)
Cancellation of Request for President’s Neutrality in Elections and Other Measures: the President’s Application for the Constitutional Appeal, Constitutional Court Decision Commentary (2009)
Problems in Trial Practice in Connection with Decisions Inconsistent with the Constitution: Relating to Penal Provisions, Trial Practice Study of Gwangju District Court (2009)
Whether to Allow a Claim for Limited Unconstitutionality and Scope of Permission, A Collection of Treatises on the Constitution (2007)
Confirmation of Unconstitutionality for Article 24(4) of the Public Educational Officials Act, etc.: Subject and Scope of Autonomy of Colleges, Constitutional Court Decision Commentary (2007)
Lawfulness of Granting the Claim for Sale in the Market Re-development Project, Constitutional Court Decision Commentary (2007)
Current Practice of ADR in the U.S. and Facilitation Plans in Korea, Korean Judiciary Administration Society (2006)
Enhancement Plan to Facilitate ADR, Civil Litigation, Korean Civil Procedure Society Journal (2006)
Changes in Disadvantages of Employment Terms and Conditions under Collective Agreements, Legal Journal (2001)
Division of Churches and Ownership of Church Properties, Trial Practice Study of Suwon District Court (1996)