As Taiwan's international trade with the U.S. and Southeast Asian countries expanded, the government in 1961 approved applications from Citibank, Bank of America and the Bangkok Bank, to operate in Taiwan.
因此，政府在民國五十三年核准美國花旗銀行，五十四年核准美國商業銀行及泰國盤谷銀行來台設立分行。