Foreign employees pay social security.

This situation does not need to be closed.

Flexible employees who have previously participated in the basic old-age insurance for enterprise employees in their personal capacity do not need to transfer the old-age insurance relationship if they are employed in this province; Inter-provincial migrant workers, before receiving the basic old-age insurance benefits, can apply for the transfer of the old-age insurance relationship to the newly insured place in accordance with state regulations.

Both flexible employees and enterprise employees have participated in the "basic endowment insurance for enterprise employees", and there is no distinction between "social security for flexible employees" and "social security for employees", let alone the problem of mutual transfer between them. Even if you participate in the endowment insurance for urban and rural residents, there is no cross-system cost transfer.