Trade Secrets 2025

SOUTH KOREA Law and Practice Contributed by: Dongju Kwon, Changkwon Kim, Sejung Lee and Yoon Sun Kim, Yoon & Yang LLC

Yoon & Yang LLC is a full-service law firm with more than 550 attorneys and other profession - als based in Seoul, South Korea, and in over - seas offices in Tashkent, Uzbekistan and Ho Chi Minh City and Hanoi, Vietnam. The firm’s trade secrets practice team has over 25 attor - neys and other professionals, including intel - lectual property, antitrust, criminal defence and labour attorneys, who demonstrate world-class professionalism and expertise for providing top- notch legal services based on clients’ needs. The trade secrets practice team has accumu - lated considerable litigation expertise, with

Korean companies having been increasingly initiated or subject to litigation in US court and ITC proceedings. The team successfully repre - sented SK Innovation in a trade secret infringe - ment lawsuit brought by its competitor before the US courts, ITC and Korean courts. It also represented SK Hynix against its competitor in trade secret infringement cases in the USA and Japan, and OTO Melara in ICC arbitration pro - ceedings regarding trade secret infringement. In particular, the intellectual property group ad - vised in cases of trade secret infringement liti - gation regarding Medytox’s botulinum strains.

Authors

Dongju Kwon is a partner of Yoon & Yang LLC and head of the intellectual property group. His main practice areas are intellectual property rights and specialised fields such as

Changkwon Kim is a partner of Yoon & Yang LLC. He has considerable strength in matters related to intellectual property, product liability, bankruptcy, corporate rehabilitation and

healthcare. Mr Kwon was admitted to the Bar in 1994 and handled cases for more than 20 years as a chief judge and presiding judge. With such experience, he has considerable strength in developing logical arguments and submitting relevant evidence with consideration for the perspectives of judges. His representative matters include working for clients such as SK Innovation Co, Ltd, SK Chemicals and Hanmi Pharma.

healthcare disputes. Starting his career in the public sector, he held various positions before retiring from public office as a presiding judge at the Seoul Bankruptcy Court. He has actively participated in publications related to trade secrets, intellectual property rights and copyright.

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