Yin Hua fund management company. According to public information inquiry, the national social security 1 18 portfolio is managed by Yin Hua Fund. The social security fund 1 18 combination is managed by the bank fund. According to the regulations of the State Council and Ministry of Human Resources and Social Security, the National Social Security Council will entrust the national social security fund, some basic pensions for enterprise employees, basic old-age insurance premiums and some transferred state-owned capital to qualified fund companies for fund management. According to the requirements of fund management and risk level, the social security fund 1 18 portfolio is entrusted to Yin Hua Fund Company for operation, which mainly invests in the stock market and belongs to stock funds.