Bank after the original series "United World Chinese Commercial Bank" and "Cathay commercial banks' merger renamed, formerly United World Chinese Commercial Bank in September 1971, all the delegates representing the Fourth World Chinese Finance Association World Chinese Entrepreneurs supports the determination of the motherland economic development, combined overseas seventeen countries and regions of the loyal community leaders, and the Taipei Association of Banks owned seventeen member banks each contributed fifty percent planning to set up. Republic of China was held in May 1974 conference sponsors, through capital amounted to one thousand dollars Erbai million shares in each half at home and abroad. Ministry of Finance of the Republic in December 1974 reported the Executive Yuan approved the establishment of the Bank, May 20 64 years in the 10th Wing Sui Street Taipei officially opened. 84 years in the Republic of the merger on April 17, "Overseas Trust and Investment Company Limited.