| Feb. 1982. |
graduated from Gyeongil High school |
| Feb. 1991. |
graduated from Kyungpook National University in Accounting |
| Dec. 1990. |
joined Doosan Construction & Engineering |
| Apr. 2007. |
promoted to managing director in Doosan Heavy Industries & Construction |
| Oct. 2008. |
promoted to CFO in Doosan Infracore |