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.