President
| 2016 – Present | Director/ Chairman of the Executive and Risk Management Committee/ President, Pylon PLC. |
| 2008 – Present | Chairman, Excelon Co., Ltd. |
| 2005 – 2016 | Director/ Chairman of the Executive Committee/ President, Pylon PLC. |
| 2011 – 2015 | Director, Thai Listed Companies Association |
| 2011 – 2015 | Director, mai Listed Companies Association |
| 2002 – 2005 | Chairman/ President, Pylon Co., Ltd. |