Mr Yun, a founding partner of Yulchon, is the managing partner of the firm. Mr Yun practises primarily in the areas of corporate (with an emphasis on mergers and acquisitions (M&A)), antitrust, tax and governmental relations. Before founding Yulchon, Mr Yun was a prosecutor with the Pusan District Prosecutor’s Office, an associate with the law firms of Lee & Ko and Baker & McKenzie (Chicago and New York), and a partner at Yoon & Partners.

Mr Yun has written many articles for various publications, including ‘Regulation of Business Combinations under the Antimonopoly and Fair Trade Act with Emphasis on Case Law’, Journal of Korean Law (2002), ‘Tax Aspects of Derivative Financial Instruments’ for the 49th Congress of the International Fiscal Association (1995) and ‘Transfer Pricing for South Korea’ published in CCH International Transfer Pricing Laws (1994).

Mr Yun has given lectures at both the Judicial Research and Training Institute and Seoul National University Law School. He has served as outside legal adviser to various government agencies such as the Korea Fair Trade Commission (KFTC) and the Ministry of Trade, Industry, and Energy, and was a member of the Competition Policy Advisory Board for the KFTC. In addition, Mr Yun has been on the legal advisory committee of the Korean Broadcasting Commission, and was a technical adviser for the Tax Policy Review Council for the Ministry of Finance and Economy.

In recent years, Mr Yun was selected as one of the world’s leading M&A lawyers by the International Financial Law Review, as a Practical Law Company crossamp;-border M&A leading lawyer, as a Chambers Global leading banking and finance/corporate lawyer, as a Global Competition Review leading (competition) lawyer and as one of Asia’s leading (competition) lawyers by AsiaLaw. He has been selected by Who’s Who Legal as a leading competition lawyer every year since 2004. Additionally, Mr Yun has received a Prime Minister’s Award for antitrust administration and a Deputy Prime Minister’s Award for tax administration. Mr Yun was also chosen as a leading lawyer of 2009 by IFLR 1000.

Mr Yun has successfully represented numerous major corporations, including AMD, Bridgestone Corporation, the Carlyle Group, Citigroup, Daum Communications, GE, Goldman Sachs, Hyundai Capital, Hyundai Merchant Marine, Hyundai Motors, LG Philips LCD, Lotte Shopping, LVMH, RealNetworks, Samsung Electronics, Samsung Life Insurance, SK Corporation and SK Telecom.

Mr Yun holds LLB and LLM degrees from Seoul National University, an LLM from Harvard Law School and a JD from the University of California, Hastings College of Law. He is admitted to practise in Korea, New York, Illinois and Washington, DC.