He served as Vice Premier and Minister of Chemical Industry in the Cabinet of North Korea.
During the 1990s to 2003 he served as director of the Namhung Youth Chemical Complex in Anju, South Pyongan Province.
In 1998 he was elected to the 10th convocation of the Supreme People's Assembly (SPA), representing the 119th electoral district.
[1] In 2003 he was elected to the 11th convocation of the SPA, and appointed to Minister of Chemical Industry, replacing Pak Pong-ju who became Premier of North Korea.
[2][3] He was member of the funeral committee of Jo Myong-rok in 2010,[4] Ri Ul-sol in 2015[5] and of Kim Yang-gon in 2015.