 | Phya Mahaisawan | 1968 – 1971 |
 | Mr. Bancherd Cholvichan | 1972 – 1975 |
 | H.E. Mr. Sommai Hoontrakool | 1976 – 1993 |
 | H.E. Mr. Arsa Sarasin | 1994 – 1996 |
 | Thanpuying Niramol Suriyasat | 1996 – 2000 |
 | Mr. Staporn Kavitanon | 2001 – 2007 |
 | Mrs. Kobkarn Wattanavrangkul | 2008 – 2014 |
 | Mr. Kalin Sarasin | 2014 – Present |