| 1997. 1 | President, Woorim Management Consulting (Management Supervising Consultant) |
|---|---|
| 1997. 7 | President, Busan Nakdong River Lion's Club |
| 2002. 7 | Member, Busan Metropolitan Council (Member of Building Permit Committee, Urban Transportation Policy Committee, and Transportation/Environment Impact Assessment Committee) |
| 2003. 3 | Member, Construction Cooperative Committee for Busan / Geoje Link Road |
| 2003. 3 | Member, Advisory Council for Environment Promotion for the Nakdong River Region |
| 2004. 3 | Member, Administrative Committee for the Office of Busan / Jinhae Free Economic Zone |
| 2005. 5. 1 | Elected as the 4th Head of Gangseogu Office by popular vote |
| 2006. 7. 1 | Elected as the 5th Head of Gangseogu Office by popular vote |