Yoon & Yang LLC

Seoul Office

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This content is provided by Yoon & Yang LLC.

Managing Partners: Jinsu Jeong; Junsang Lee; Myung Soo Lee 
Number of partners: 120
Number of lawyers: 440
Languages: English, German, Spanish, Japanese, Korean, Russian, Vietnamese, Chinese, French

Firm Overview:
Since its establishment in 1989, Yoon & Yang LLC has been one of Korea’s premier full-service law firms, providing comprehensive legal solutions to clients around the world in all areas of legal practice. Recently, the firm opened two offices in Vietnam, in addition to its Tashkent office in Uzbekistan. The two new offices have enhanced the firm’s strong strategic presence in Southeast Asia. The firm now has over 400 professionals with diverse expertise providing one-stop solutions that include both legal advice and practical solutions. The firm has a strong client base including large Korean corporations as well as numerous multinational businesses.

Practice Areas
■ Antitrust & Competition
■ Admiralty & Maritime
■ Banking, Securities & Finance
■ Capital Markets
■ Corporate/M&A
■ Defence Procurement
■ Energy
■ Government Relations
■ Health Care
■ Intellectual Property
■ International Trade & Investment
■ Labour/Employment
■ Litigation & Arbitration
■ Privacy & Data Protection & Internet
■ Real Estate & Construction
■ Tax & Customs
■ White Collar Criminal Defence

Main Areas of Practice:

Antitrust & Competition:
■ Representing Qualcomm as the primary counsel in an administrative lawsuit before the Supreme Court. Qualcomm is seeking the annulment of the KFTC’s corrective orders and a fine in the amount of KRW 1 billion (approximately USD 865 million) for alleged abuse of dominance involving Qualcomm’s patent licensing practices
■ Successfully represented United Technologies Corporation (“UTC”), a U.S.-based leading aerospace equipment supplier, in the KFTC’s review of UTC’s acquisition of Raytheon Company, a leading defense equipment supplier, for USD 52 billion, and obtained unconditional clearance despite objections from stakeholders
Contact: Hoil Yoon, Chul Ho Kim
Email: [email protected], [email protected]

Banking Regulation:
■ Successfully advised Shinhan Bank in its acquisition of Indonesia’s Bank Metro Express (BME) and Centratama Nasional Bank (CNB) and the subsequent mergers
■ Successfully advised Korea Investment Holdings Co., Ltd. in its establishment and authorization of a real estate trust subsidiary company, Korea Investment Real Estate Trust Co., Ltd.
Contact: Soonghee Lee
Email: [email protected]

Employment & Labour:
■ Successfully represented Hyundai Motor Company in lawsuits filed by contract workers seeking direct employment to HMC and a considerable amount of wages in compensation
■ Successfully represented Hyundai Motor Company in lawsuits initiated by HMC’s fixed-term employees claiming wrongful termination based on the right to renewal of employment contracts
Contact: Sang Hoon Park
Email: [email protected]

Intellectual Property:
■ Representing and advising SK Innovation in trade secret and patent disputes with LG Chem filed in Korea and the United States
■ Representing Merck, Sharp & Dohme Corp. in actions challenging the validity of Pfizer/ Wyeth’s patents relating to pneumococcal conjugate vaccines
Contact: Wonil Kim
Email: [email protected]

International Arbitration:
■ Successfully represented a metropolitan city development corporation in an ICC arbitration against a cross border joint venture dispute. Also obtained an award of entire legal defense costs
■ Successfully represented a F&B company in an SIAC arbitration regarding a joint venture dispute
Contact: Junsang Lee
Email: [email protected]

■ Currently representing Kolon Life Science, manufacturer of a popular osteoarthritis treatment, in a product liability action against a number of patients who claim that the manufacturer has illegally modified the underlying ingredients of the treatment after obtaining its certification
Contact: Seung Ryong Yoo
Email: [email protected]

■ Currently advising Korean Air on its sales of in-flight catering business to private equity firm Hahn & Company for KRW 990 billion (approximately USD 873 million)
■ Successfully advised financially troubled POSCO Plantec in its attraction of new investment and the conclusion of the workout program by issuance of KRW 60 billion (approximately USD 53 million) new shares to United Asset Management (UAMCO) and by issuance of KRW 158.3 billion (approximately USD 142 million) new shares to its creditors in debt-to-equity conversion
Contact: Sung-Jin Kim
Email: [email protected]

■ Successfully represented British American Tobacco Korea Ltd. and two individuals (Executive Director in charge of production and logistics, Director in charge of logistics) in a $44.7 million tax related criminal litigation case on violation of the Punishment of Tax Offenses Act
■ Successfully represented I&TDC in a $28.8 million review system of the legality before taxation case for the repeal of value-added tax
Contact: Jae Woong Jeong
Email: [email protected]

White Collar Crime:
■ Successfully defensed Deutsche Bank in a lawsuit in which an employee of Deutsche Bank allegedly earned KRW 40 billion (approximately USD 34 million) using index basket trade worth KRW 2.4 trillion (approximately USD 2 billion). As a result, Yoon & Yang reversed the conviction in the 1st instance trial and obtained the employee’s acquittal in the trial on appeal
■ Successfully defensed British American Tobacco’s Korean subsidiary and its employees before the Korean court holding the clients are not guilty. Clients were indicted for suspicion of tax evasion by falsely taking out tobacco products before a raise of the retail price
Contact: Hee-Sik Yoon
Email: [email protected]