The enterprise annuity in JD.COM is operated by four management roles: trustee, account manager, investment manager and custodian. According to relevant public information, there are four management roles in the operation of enterprise annuity fund: trustee, account manager, investment manager and custodian. These managers must have certain qualifications and obtain qualification certificates issued by Ministry of Human Resources and Social Security. China's enterprise annuity is a trust model, and the client gives the enterprise annuity to the trustee for management through a trust management contract signed with the trustee. In the course of operation, the custodian bank will open a special account for enterprise annuity funds, which will be used to collect and manage enterprise annuity funds. The trustee shall coordinate other managers to manage the enterprise annuity according to the entrustment contract and the requirements of national policies and regulations.