After the listing of closed-end funds expires, China Securities Depository and Clearing Co., Ltd. will hand over the relevant information of all closed-end fund share holders to the registration institution designated by the fund management company. The original closed-end fund holders need to carry the certification documents stipulated by the registration authority, and send their closed-end fund shares, customer information and other data to the registration authority through various open-end fund consignment agencies. After verification by the registration authority, the corresponding fund shares will be registered in the registration system, so that the holders can handle the redemption business after converting into open-end funds.