Dear Agency, my company is a 100% foreign-owned FDI enterprise. Management personnel is sent from the parent company to work. Currently, because they are internally displaced, the above managers are not participating in social and health insurance. However, due to an error in making a work permit, the working form of the Managers on the work permit is "Employees with a labor contract" and cannot be corrected. Therefore, for the above error, do the managers have to participate in compulsory social insurance? And if it is mandatory, will there be additional arrears or penalties for the previous time that they have not participated? Sincerely thank you.