When will Nanjing be forced to pay social security?

Social insurance has been compulsory since 1996. According to relevant data, Nanjing initiated the reform of the old-age insurance system for enterprise employees as early as 1986. 1in June 1996, an old-age insurance system combining social pooling with individual accounts was established.1in July 1998, urban flexible employees were included in the coverage of old-age insurance for enterprise employees earlier in similar cities across the country.