Shanghai social security is regarded as payment.

It is regarded as payment, which means that employees participated in the work before the implementation of the old-age insurance system in the country, but did not participate in the payment. If this period is not counted, it is obviously unfair. In order not to affect the interests of employees, the year of non-payment can be regarded as the payment period. Also, employees who have joined the army and jumped the queue in rural areas or in accordance with state regulations can be regarded as payment time or payment. It is deemed that the payment and the actual payment are combined and calculated as the payment period.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.