Compared with the previous rules, the Measures stipulate that large enterprises may also be qualified to guarantee the trust loan projects of social security fund, and specify that relevant large enterprises should meet the following requirements: they shall possess net assets no less than CNY15 billion; the credit rating granted shall be not lower than those of main debt payer; all projects under guarantee of the same large enterprise shall not take up over 50% of its net assets; and net assets of the large enterprise shall not be less than 1.5 times of main debt payer's net assets, if parent company or actual controller of the main debt payer provides guarantee. Meanwhile, the Measures provide trust companies project recommendation right to some extent, and if they satisfy the conditions of social security fund trust assets trusteeship, they may recommend trust loan projects to social security fund. Moreover, the Measures also make stipulations on details to be defined in actual practice.