Most commonly referred to as MUFG Bank, ( Kabushiki Gaisha Mitsubishi Yūefujē Ginkō) is Japan's largest and most prosperous bank. Established in 2006, MUFG Bank came to be as the result of a merger of the Bank of Tokyo-Mitsubishi, Ltd. and UFJ Bank Ltd. Today, the bank represents the primary corporate, retail and investment banking wing of the Mitsubishi UFJ Financial Group. Though primarily focused on Japanese customers and businesses, the company is rapidly expanding its reach overseas. Today, MUFG Bank operates around 772 offices across Japan, along with 76 international branches and representative offices. As of 2010, Bloomberg ranked MUFG Bank as the eighth largest bank in the world.