In fact, social security must be paid.

the regulations on the administration of declaration and payment of social insurance premiums require that the employer shall apply for social insurance registration for its employees and declare and pay social insurance premiums within 3 days from the date of employment. If the social insurance has not been registered, the social insurance agency shall verify the social insurance premium it should pay.

In view of the fact that some employers fail to pay social insurance premiums in full and on time, it is clearly stipulated that the social insurance agency shall order them to pay or make up within a time limit, and impose a daily overdue fine of .5‰ from the date of default; If it fails to pay within the time limit, the administrative department of social insurance shall impose a fine of more than 1 time and less than 3 times the amount owed.