From 1994 to 1995, he was Minister of Science under Chuan Leekpai,[REF] from 1996 to 1997 Minister of Transport under Chavalit Yongchaiyudh,[REF] and from 1998 to 2000 Minister of Industry in the second government of Chuan Leekpai [REF].
When the Supreme Tribunal dissolved the Thai Rak Thai Party in 2007, it banned its 111 party executives, including Suwat, from politics for five years.