Jiyul Yoo Senior Foreign Attorney
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  • TEL 82 2 6003 7552
  • FAX 82 2 6003 7804
  • E-MAIL
Jiyul Yoo is a senior foreign attorney at Yoon & Yang LLC. His main practice areas include corporate law, international matters, healthcare.
Mr. Yoo mainly advises on the overseas affairs of domestic subsidiaries of overseas global companies and of domestic companies. He has also been active in international commerce, writing "U.S. Antidumping Law and Practice," which is widely learned in the domestic commerce industry. He has served as the head of Yoon & Yang's healthcare team, adjunct professor at the Judicial Research and Training Institute, a member of the Korea Anti-Doping Committee, and an advisory member of the Korea-US FTA expert at the Ministry of Foreign Affairs and Trade.


  • 2005-present Yoon & Yang LLC
  • 2010-17 Member, The Legal Advisory Committee on International Investment Dispute of the Ministry of Justice
  • 2012-13 Named in Euromoney Legal Media Group’s AsiaLaw Leading Lawyers
  • 2009-13 Member, Korean Appeal Agency on Doping
  • 2010-11 Visiting Lecturer, Judicial Training and Research Institute
  • 2009 Member, Pusan Financial Hub Advisory Board
  • 2009 Lecturer, Introduction to Law, Sangmyung University
  • 2006-09 Member, Korea Anti-doping Agency
  • 2006-07 Expert Advisory Member of the Korea-U.S. Free Trade Agreement, Ministry of Foreign Affairs and Trade
  • 2005-07 Lecturer, Youngsan University Law School
  • 2002-06 Civilian Trade Negotiations Advisory Group for Competition Policy for Korean’s Ministry of Foreign Affairs and Trade
  • 2005 Advisory Board for Advanced Trade Nation of the Ministry of Finance and Economy
  • 2004 Member, The Korea Trade Commission Task Force on International Trade Regulations
  • 2002-05 Yulchon LLC
  • 2001-02 Advisory Counsel, Overseas Korean Lawyers, Legal Service Center for International Trade and Promotion of Korea’s Ministry of Justice
  • 2001-02 Pillsbury Winthrop LLP (Washington, DC)
  • 1998-00 Dorsey & Whitney LLP (Washington, DC)
  • 1995-98 Winthrop, Stimson, Putnam & Roberts (Washington, DC)


  • 1995 Vanderbilt School of Law, J.D.
  • 1990 Columbia University, Graduate School of Business, M.B.A.
  • 1988 Seoul National University, Department of International Relations, B.A.

Representative Matters

  • Advised US and Japanese companies on the acquisition of Korean companies
  • Advised a domestic company on the U.S. Trade Commission (ITC) case
  • Advised on a U.S. litigation concerning trade secrets between a Korean company and a U.S. company
  • Advised on trade secret litigation and international arbitration between a European company and a Korean company
  • Foreign expansion of domestic pharmaceutical companies, entry of foreign pharmaceutical companies into the country, listing on health insurance benefits list, clinical trials, determination of drug prices, and listing on Green List. Advice on K- quarantine, etc
  • Advised a U.S. company on investment conversion, workouts, and court management for a Korean company
  • Advised Korean companies on US anti-dumping cases


  • Leading Lawyer, Corporate Governance, asialaw Leading Lawyers (2012, 2013)


  • “Remedies for Unfair Trade Practices in Relation to the Intellectual Property Right Infringement in South Korea”, Michigan International Lawyer (Co-Author, Winter 2013)
  • “Enforcement of competition law in the South Korean pharmaceutical industry”, Practical Law Multi-Jurisdictional Guide, Life Sciences (Co-Author, 2013)
  • “Impact of the South Korea-US Free Trade Agreement on the Korean pharmaceutical industry”, Practical Law Multi-Jurisdictional Guide, Life Sciences. (Co-Author, 2012)
  • “U.S. Antidumping Law and Practice,” Dasan Publishing Co., (2002)