According to the Interim Measures for the Management of Securities Investment Funds issued by 1997, the paid-in capital of commercial banks as fund custodians should be no less than 8 billion; According to this standard, at that time, only five commercial banks, namely, industrial, agricultural, China, construction and Shanghai, were qualified for fund custody. Up to now, there are 10 banks with fund custody qualifications, including the newly added five banks, namely China Everbright, China Merchants, Shanghai Pudong Development Bank, Minsheng Bank and CITIC Bank.