The Yokohama Specie Bank (横浜正金銀行, Yokohama Shōkin Ginkō, YSB) was a Japanese bank founded in Yokohama in 1880, which dominated the Japanese market for trade finance in subsequent decades. It has been described as a "quasi-governmental exchange bank that was the overseas financial agent of the Japanese government".[2]: 3
During the 1920s, the YSB accounted for nearly 50 per cent of foreign exchange transactions for Japanese exports and imports, and in 1929 was Japan's largest and most profitable bank aside from the Bank of Japan.[3] It also played a significant role in Japanese colonial ventures, not least in Manchuria and elsewhere in China.[4]
In 1946, following the loss of Japan's overseas possessions, the Yokohama Specie Bank was reorganized and rebranded as the Bank of Tokyo, one of the predecessor entities of MUFG Bank.