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SINSUNG(SEAN) YUN / Partner

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Biography

Sinsung (Sean) YUN is a partner in the Antitrust Practice Group at Yoon & Yang. In the field of competition and antitrust, he has represented domestic and foreign companies in matters covering domestic and international cartels including leniency applications, abuse of market-dominant position, business combinations, private damage actions and compliance counselling. His representations covered a variety of industries including auto parts, commercial freight vehicle, air cargo, CRT/LCD, elevator/escalator, cable television, internet portals, credit card, hypermarket, pharmaceuticals, energy, alcoholic beverages and tobacco. More recently, he has expanded his field of expertise to issues related to IT, media and communications, among others, and has represented several multinational IT companies in high-profile antitrust cases before the Korea Fair Trade Commission and Korean courts. Besides practicing law, he has advised the Korea Fair Trade Commission with regard to competition policy in the information technology industry.

Sean received his LL.B. degree from Seoul National University in 1993 and LL.M. degree from Georgetown University Law Center in 2008. He has worked at Howrey LLP’s Washington DC office as a foreign lawyer from 2008 to 2009. He is admitted to the Korean and State of New York (USA) Bars. He is recognized as a leading competition lawyer by Euromoney Legal Media Group’s IFLR Leading Competition Lawyers and as a leading antitrust practitioner by the same media group’s AsiaLaw Leading Lawyers.

Education

2008
Georgetown University Law Center, LL.M.
2005
Graduate School of Law, Seoul National University, Doctorate Course
2001
Columbia Law School, Center for Korean Legal Studies, U.S. Trade Law Seminar
1995
Seoul National University Graduate School of Law, LL.M.
1993
Seoul National University College of Law, LL.B.

Experience

2011-present
Partner, Yoon & Yang LLC
2015-present
Adjunct Professor, Hanyang University School of Law
2014-present
Commissioner, SNU Competition Law Center Steering Committee
2013
Professional Legal Research Course, New Horizon of Competition Law, Seoul National University College of Law
2012-13
Named in Euromoney Legal Media Group’s AsiaLaw Leading Lawyers
2011-present
Adjunct Professor, Sogang University Law School
2008-09
Visiting Foreign Law Expert, Howrey LLP, Washington DC
2006
Professional Legal Research Course, Antitrust Law and Regulated Industries, Seoul National University College of Law
2004-05
Commissioner, Advisory Committee for Competition Policy In The Information Technology Industry, Korea Fair Trade Commission
2003-11
Associate, Yoon & Yang LLC
2003
Professional Legal Research Course, International Trade Law and Policy, Seoul National University College of Law
2002-03
Associate, Yoon & Partners
1995-98
Full-time Lecturer, Korea Air Force Academy

Publications

  1. “Information Exchange as a Type of Agreement?,” Journal of Korean Law (co-author), 2015
  2. “Hwawei v. ZTE Ruling of the Court of Justice of the European Union – Journal of Competition 182nd Issue”, 2015
  3. “Recent key competition law issues in the U.S. and Europe and their implications,” Competition and Law, No. 3 (co-author), 2014
  4. “Korean Chapter,” Cartel Regulation : Getting the Deal Through, Law Business Research (co-author), since 2013
  5. “South Korea : Cartels and Its Aftermath,” The American Lawyer, 2014
  6. “Korean Chapter,” The International Comparative Legal Guide to: Cartels & Leniency, Global Legal Group (co-author), since 2013
  7. “Resale Price Maintenance”, 30 Years of Monopoly Regulation and Fair Trade Act (co-author), 2011
  8. “High Court Rejects Multiple Regression Method in Follow-on Cartel Damage Litigation,” International Law Office (co-author), 2010
  9. “Joint Application for Reduction System for subsidiaries”- Issues and Tasks of the Monopoly Regulation and Fair trade Act, 2010
  10. “Korean Antitrust Regulations - South Korea - The 2009 Guide to Competition and Antitrust,” IFLR (co-author), 2009
  11. “South Korea: Changes to the Corporate Leniency Program for Cartels,” International Antitrust Bulletin, ABA Volume 2 (co-author), 2009
  12. “A Case Review On Discriminatory Pricing,” Antitrust Case Law Review, 2006
  13. “Legal Theory on Tie-In Sales,” The Lawyer, 2003
  14. “Regulation of Monopolistic and Oligopolistic Pricing,” Seoul National University Graduate School of Law LL.M. Thesis, 1995

Representative Matters

  • Represented Intel in an investigation by the Korea Fair Trade Commission and an administrative litigation in connection with an alleged abuse of market dominant position 
  • Represented Qualcomm in an investigation by the Korea Fair Trade Commission into an alleged abuse of market dominant position 
  • Represented an Intervenor in an investigation by the Korea Fair Trade Commission into a merger between Google and Motorola
  • Represented Hite Brewery in an investigation by the Korea Fair Trade Commission into Hite Brewery’s acquisition of Jinro
  • Represented an interested party in an investigation by the Korea Fair Trade Commission into an alleged abuse of market dominant position by Google
  • Represented an examinee in an investigation by the Korea Fair Trade Commission into a collaborative act by automobile part companies
  • Represented a multinational air carrier in an investigation by the Korea Fair Trade Commission and an administrative litigation in connection with an international carte for air cargo service fees
  • Represented an examinee in an investigation by the Korea Fair Trade Commission and an administrative litigation in connection with a collaborative act by LPG companies
  • Represented a multinational elevator manufacturer in an investigation by the Korea Fair Trade Commission, an administrative litigation and a damages litigation in connection with a collaborative act by elevator companies

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