The Huizi (simplified Chinese: 会子; traditional Chinese: 會子; pinyin: huì zi), issued in the year 1160, was the official banknote of the Chinese Southern Song dynasty. It has the highest amount of issuance among various banknote types during the Song dynasty. Huizi notes came on three-colour printed paper and their usage was heavily promoted by the government of the Southern Song dynasty, the Huizi were backed by 280,000 guàn of copper cash coins.[1]