New unit to social security contribution certificate need to give all the units?

New units to social security contributions to prove the need to give all units, new units need to mention social security contributions to prove that does not involve personal privacy, mainly for your former catty social security relations necessary for convergence.

Unit social security, to help companies avoid the risk of employment, employee payroll, payroll tax, employee satisfaction survey, social security issued to improve the efficiency, reduce employment costs, improve efficiency.