1. Contract fund is an agency investment system established according to certain trust deed principles. The trustee, the trustee and the beneficiary conclude a contract, and the management institution (trustee) manages the trust assets. Banks or trust companies (trustees) keep trust assets. Investors (beneficiaries) enjoy investment income.

2. The company fund operates in the form of a joint-stock company. Investors buy shares of the company and become shareholders of the company. Corporate funds involve four parties: investment companies are the main body of corporate funds. Manage companies and assets for investment companies. Custody companies that keep assets for investment companies are banks or trust companies. Underwriting companies, responsible for promoting and repurchasing company shares.