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Hoil Yoon is a managing partner of Yoon & Yang LLC. His practice concentrates on antitrust, international business transactions, and international litigation and arbitration. He has extensive experience in the areas of M&A, cartels, dominance abuse, unfair trade practices (including distribution, pricing and the intersection of intellectual property and antitrust), and antitrust litigation. He also heads the firm’s antitrust practice group, which was awarded an Elite rating by Global Competition Review and is included in Global Competition Review’s global top 100 list.
Prior to establishing Yoon & Partners, a predecessor of Yoon & Yang LLC, Yoon practiced law in the United States as a partner at Baker & McKenzie from 1979 to 1989. He also served as an ambassador for international economy and trade, as a non-standing commissioner of the Korea Fair Trade Commission and a Seoul District Court Judge. He was a member of the Korean Bar Association’s Board of Directors from 1990 to 1992 and from 2006 to 2008.
Yoon was a Chairman of the Seoul Bar Association’s Antitrust Law Section. He also served as a member of the competition policy advisory board at the Korea Fair Trade Commission, concurrently with serving as Chairman of the board’s International Cooperation Committee. He is a member of the American Bar Association’s Antitrust Law Section where he had served as a member of the International Cartel Task Force and the International Task Force. He was chairman of the Korea Competition Forum from 2005 to 2009, and since 2002 he has served as a non-governmental advisor to the International Competition Network.
In April 2006, Yoon received a national Camellia Medal from the Korean government for his contributions to the advancement of antitrust law. International legal journals frequently name him as one of the nation’s leading lawyers in antitrust, corporate, and dispute resolution law. He has written numerous prominent articles on antitrust and corporate law.
Yoon received his J.D., magna cum laude, from Notre Dame University where he was an editor of the law review, and received his LL.M. and LL.B. from Seoul National University. He is admitted to the bars of Korea, New York, Illinois, Washington, D.C., and the United States Supreme Court.


University of Notre Dame Law School, J.D., Magna Cum Laude
Editor of Notre Dame Law Review
Seoul National University Graduate School of Justice, LL.M., Summa Cum Laude
Seoul National University College of Law, LL.B., Magna Cum Laude


Managing Partner, Yoon & Yang LLC (formerly Yoon Yang Kim Shin & Yu, 2006-2009)
Chairman, Asia Competition Association
Advisor, Committee for Promotion of Advanced Act and Subordinate Status, Korean Fair Trade Commission (KFTC)
Official, International Cartel Task Force & International Task Force, Section of Antitrust, American Bar Association
Recipient, The National Camellia Medal from the Korean Government
Member, Competition Policy Advisory Board, KFTC
Chairman, Korea Competition Forum
Non-Governmental Advisor, International Competition Network
Commissioner, Civilian-Government Joint Forum for Doha Development Agenda
Vice President, Korea Derivatives Association
Ambassador for International Economy and Trade, Ministry of Foreign Affairs and Trade
Member, Competition Policy Advisory Board, KFTC
Member, Stock Index Management Committee, Korea Exchange
Visiting Lecturer, Judicial Research and Training Institute
Nonstanding Commissioner, KFTC
Panelist, International Center for Settlement of Investment Disputes, Panel of Conciliators, U.S.A.
Korea Commercial Arbitration Board, Commercial Panel
Advisory Member, New product Advisory Committee, Korea Stock Exchange
Director, Korean Bar Association
Civic, Rotary International (Seoul Hangang Rotary Club) (President, 2004-05)
Managing Partner, Yoon & Partners
Lecturer, Columbia University School of Law, New York
Recipient Presidential Citation/Decoration from the Korean Government
Chairman, American Bar Association’s Subcommittee on Korea
American Arbitration Association, Commercial Panel, New York
Director, U.S.-Korea Society, Inc., New York
Partner, Baker & McKenzie, Chicago, Illinois, Baker & McKenzie, New York
Associate, Baker & McKenzie, Chicago, Illinois
Judge, Seoul District Court, Seoul, Korea
Judge Advocate, Republic of Korea Air Force


  1. Chambers Global Practice Guides : Cartels 2019, Chambers and Partners (co-author), 2018
  2. Korea Chapter, Cartel Regulation 2014: Getting The Deal Through, Law Business Research (co-author), 2014
  3. Korea Chapter, “Competition Laws Outside the United States, 2d ed.”, ABA Section of Antitrust Law, 2011
  4. “Antitrust Issues in International Intellectual Property Licensing Transactions 2012 - Korea,” ABA Section of Antitrust Law, 2012
  5. “Cartel Regulation 2009 - Korea,” Global Competition Review Special Report, 2009
  6. “Merger Notification Procedures in Korea,” Competition and Antitrust Review 2009, 2009
  7. “Strengthening Anti-Cartel Enforcement in Korea,” Journal of Competition, 2005
  8. “Toward a New Competition Policy in Korea,” Competition and Antitrust 2002, 2002
  9. “Relief for Wrongful Conduct in Futures Trading,” 1 Korean Journal of Futures and Options 165, 1993
  10. “Proxy Solicitation and Voting Trust,” 8 Commercial Law Review 169, 1990
  11. “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
  12. “Taxation of Foreign Investment and Trade,” 5 Korean Journal of Comparative Law 48, 1977
  13. “A Study on Rule 10.B.5 of the U.S. Securities Regulations,” 47 Notre Dame Lawyer 1349, 1972
  14. “A Study on Korean Land Law,” Bup Jo, 1967

18th, 19th, 22nd, 23rd, 34th Fl., ASEM Tower 517 Yeongdong-daero, Gangnam-Gu, Seoul 135-798, Korea / Tel:+82-2-6003-7000 / Fax:+82-2-6003-7800

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