Since China opened itself up to foreign investment in the 1990s, Taiwanese investment in Malaysia, the Philippines, Thailand and Indonesia has been falling. Vietnam has been the only exception to this downtrend in Taiwanese investment in Southeast Asia.
反觀台商在東南亞各國的投資情況，因受到中國大陸開放外資的影響，如馬來西亞、菲律賓、泰國、印尼等地，從九十年代起都有逐漸減少的趨勢。