In 1992, he joined Mitsubishi Corporation in Tokyo, Japan as a new employee and worked for the Energy Department and the Oil Import Department. In 1995, he worked at Morgan Stanley Tokyo branch at the Corporate Sales Department. In 1997, he joined Hyosung T & C (now Hyosung) as the manager of the management planning team and engaged in the merger of Hyosung T & C, Hyosung Products, Hyosung Life Industry, and Hyosung Heavy Industries. He was promoted to Managing Director in 2000, Executive Director in 2001 and to Vice President in 2003. He served as the Chief of Hyosung Trade PG in 2005, Hyosung Chief of Textile PG and President of Trade PG in 2007 while in 2011 he was Hyosung Chief of Textile and President of IT PG and Strategy HQ. He was inaugurated as the Chairman of Hyosung Group in 2017.