行政院經濟建設委員會
At the Ministry of Economic Affairs, Chiang served as Administrative Vice Minister from 1989 to 1990, Political Vice Minister from 1990 to 1993, and Minister from 1993 to 1996. From 1996 to 2000 he was Chairman of the Council for Economic Planning and Development. In this capacity, he was the special envoy of Lee Teng-hui at the 1998 and 1999 Asia-Pacific Economic Cooperation leader's summits (Lee was, because of pressure from the People's Republic of China, not permitted to attend). From 1998 to 2000 he was a Minister without Portfolio.