Hoil Yoon Managing Partner
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  • TEL 82 2 6003 7501
  • FAX 82 2 6003 7026
  • E-MAIL
Hoil Yoon is an Honorary Managing Partner at Yoon & Yang LLC. His main practice areas include antitrust, international trade, and international arbitration and litigation. Prior to establishing Yoon & Yang, Hoil Yoon practiced law in the United States as a partner at Baker & McKenzie for ten years. Based on his extensive experience as a member of the Korea Fair Trade Commission, Judge at the Seoul Civil District Court, member of the International Cartel and International Affairs Task Force of the American Bar Association, and non-governmental advisor of the International Competition Network, Mr. Yoon advises domestic and multinational companies on matters including M&A, cartels, abuse of market dominance, unfair trade, antitrust in the field of intellectual property rights, antitrust litigation, compliance programs, fostering competition, international trade, and international litigation and arbitration.


  • 2003-present Yoon & Yang LLC
  • 1989-03 Yoon & Partners
  • 1991-present Arbitrator, Korea Commercial Arbitration Board
  • 1990-present Member, Rotary International (Seoul Hangang Rotary Club) (President, 2004-05)
  • 2010-14 Chairman, Asia Competition Association
  • 2008 Advisor, Committee for Promotion of Advanced Act and Subordinate Status, Korean Fair Trade Commission (KFTC)
  • 2007-12 Member, International Cartel Task Force & International Task Force, Section of Antitrust, American Bar Association
  • 2005-13 Member, Competition Policy Advisory Board, Korea Fair Trade Commission
  • 2005-09 Chairman, Korea Competition Forum
  • 2002-11 Non-Governmental Advisor, International Competition Network
  • 2002-04 Commissioner, Civilian-Government Joint Forum for Doha Development Agenda
  • 2002-04 Vice President, Korea Derivatives Association
  • 2000-02 Ambassador for International Economy and Trade, Ministry of Foreign Affairs and Trade
  • 1999-01 Member, Competition Policy Advisory Board, Korea Fair Trade Commission
  • 1996-07 Member, Stock Index Management Committee, Korea Exchange
  • 1996-06 Visiting Lecturer, Judicial Research and Training Institute
  • 1996-98 Nonstanding Commissioner, Korea Fair Trade Commission
  • 1992-00 Mediator, International Center for Settlement of Investment Disputes
  • 1991-94 Advisory Member, New product Advisory Committee, Korea Exchange
  • 1991-92 Director, Korean Bar Association
  • 1985-87 Lecturer, Columbia University School of Law, New York
  • 1984-88 Director, U.S.-Korea Society, New York
  • 1983-84 Chairman, American Bar Association’s Subcommittee on Korea
  • 1982-89 Arbitrator, American Arbitration Association
  • 1973-89 Baker & McKenzie (New York and Chicago)
  • 1970 Judge, Seoul District Court, Seoul, Korea
  • 1967-70 Judge Advocate, Republic of Korea Air Force


  • 1973 University of Notre Dame School of Law, J.D.
  • 1967 Seoul National University, Graduate School of Justice, LL.M.
  • 1965 Seoul National University, College of Law, LL.B.

Representative Matters

  • Advised and represented domestic corporations and financial companies on issues related to antitrust, international trade, corporate law, and corporate governance.
  • Advised and represented foreign multinational corporations on conducting business in Korea, including issues related to antitrust, dispute resolution, and contract execution.
  • Advised and represented Korean conglomerates and financial institutions in the United States on general legal issues


  • Leading Individual, Competition/Antitrust, Chambers and Partners Asia-Pacific (2011, 2013-2022)
  • Leading Individual, Competition/Antitrust, Chambers and Partners Global (2011-2013)
  • Leading Lawyer, Competition, IFLR1000 (2014-2022)
  • Leading Lawyer, M&A, IFLR1000 (2014-2022/23)
  • Leading Individual, Antitrust/Competition, Legal500 Asia-Pacific (2016-2018)
  • Senior Statesman, Competition/antitrust, asialaw (2021-2023)
  • Elite Practitioner, Competition/antitrust, asialaw (2020)
  • Market-Leading Lawyer, Competition/antitrust, asialaw (2011-2018)
  • Litigation Star, Commercial and transactions, Benchmark Litigation Asia-Pacific (2020-2022)
  • Dispute Resolution Star, Commercial and transactions, Benchmark Litigation Asia-Pacific (2018-2019)
  • National Leader, Competition, Who’s Who Legal (2020-2022)
  • Korea’s Top 100 Lawyers, Asia Business Law Journal (2019, 2021)
  • Asia Best Lawyers, IFLR (2020-2021)
  • Order of Civil Merit, Camellia Medal, Korean Government (2006)
  • Presidential Commendation, Korean Government (1984)


  • Korea Chapter, Lexology Getting The Deal Through: Cartel Regulation 2022, Law Business Research (co-author), 2021
  • Korea Chapter, Getting The Deal Through: GCR Immunity, Sanctions, Settlements Know-how (co-author), 2020
  • Korea Chapter, Chambers Global Practice Guides: Cartels 2019, Chambers and Partners (co-author), 2018)
  • Korea Chapter, Antitrust Issues in International Intellectual Property Licensing Transactions, ABA Section of Antitrust Law (co-author), 2012
  • Korea Chapter, Competition Laws Outside the United States, 2d Ed., ABA Section of Antitrust Law (co-author), 2012
  • Cartel Regulation 2009 – Korea, Global Competition Review Special Report (2009)
  • “Merger Notification Procedures in Korea,” Competition and Antitrust Review 2009, 2009
  • “Strengthening Anti-Cartel Enforcement in Korea,” Journal of Competition, 2005
  • Toward a New Competition Policy in Korea, Competition and Antitrust 2002, IFLR (co-author), 2002
  • “Relief for Wrongful Conduct in Futures Trading,” 1 Korean Journal of Futures and Options 165, 1993
  • “Proxy Solicitation and Voting Trust,” 8 Commercial Law Review 169, 1990
  • “Legal Aspects of Doing Business in and with the Republic of Korea,” in Current Legal Aspects of Doing Business in Japan and East Asia, Section of International Law, American Bar Association, 1978
  • “Taxation of Foreign Investment and Trade,” 5 Korean Journal of Comparative Law 48, 1977
  • “A Study on Rule 10.B.5 of the U.S. Securities Regulations,” 47 Notre Dame Lawyer 1349, 1972
  • “A Study on Korean Land Law,” Korean Lawyers Association Journal, 1967