MUFG Bank, Ltd. (株式会社三菱UFJ銀行, Kabushiki Gaisha Mitsubishi Yūefujē Ginkō) is the largest bank in Japan. It was established on January 1, 2006, following the merger of the Bank of Tokyo-Mitsubishi, Ltd. and UFJ Bank Ltd. The bank serves as the core retail, corporate, and investment banking arm of the Mitsubishi UFJ Financial Group.[1]