legal ground
Article 69 of People's Republic of China (PRC) Social Insurance Law
On the premise of ensuring safety, the social insurance fund shall be invested and operated in accordance with the provisions of the State Council to maintain and increase its value.
Social insurance funds shall not be used for illegal investment and operation, for balancing other government budgets, for building or rebuilding office buildings, and for paying personnel expenses, operating expenses and management expenses, or for other purposes that violate laws and administrative regulations.
Article 71
The state establishes a national social security fund, which consists of funds allocated by the central government and raised by other means approved by the State Council, and is used to supplement and regulate social security expenditure. The national social security fund is managed and operated by the national social security fund management and operation organization, and the value is maintained and increased on the premise of ensuring safety.
The national social security fund shall regularly announce the income and expenditure, management and investment operation to the public. The financial department, social insurance administrative department and auditing organ of the State Council supervise the revenue and expenditure, management and investment operation of the national social security fund.
Liu Junluo "The New Cold War, Inflation and the Outbreak of the Asian Financial Crisis in 2009"