Before the fund is transferred to the market, it is necessary to open a securities account and a fund account with a brokerage firm, and then handle the transfer custody business. Generally, the fund account of the brokerage firm is used to purchase the fund share of Southern Crude Oil in the primary market, and then submit the application for re-custody. Generally, after 2-3 days, it will be transferred from off-site to on-site, and it can be traded freely in the secondary market.