| Period | Position And Company |
|---|---|
| 2005 - 2025 | Project Manager, A.S. Associated Engineering (1964) Co., Ltd. |
| 1992 - 2005 | Project Coordinator, A.S. Associated Engineering (1964) Co., Ltd. |
| 1984 - 1992 | Engineering Department Manager, Thai Gypsum Product Co., Ltd. |
| 1983 - 1984 | Production Manager, Super Fiber - Cement Co., Ltd. |
| 1981 - 1983 | Project Mechanical Engineer, United Flour - Mill Co., Ltd. |
