Seong Won Chang joined LEE & KO on March 5, 2012. Since 1989, he served as a judge for 23 years in various courts, including as a chief judge in the District Courts, as a chief judge in the Seoul High Court, and as a professor of the Judicial Research and Training Institute. His primary practice areas are civil and criminal litigations in various legal areas, including intellectual rights and construction areas, and other various provisional relief cases such as civil provisional injunction