Where can I get a list of changes in social insurance relations?

The resignation company should give you the resignation certificate and the change form of social insurance relationship. It's no use if they want it. As long as they give you insurance, you must stop your insurance when you leave. If you stop insurance, you must have a resignation certificate and a social insurance relationship change form. You should ask them for it, because social security needs a social insurance relationship change form. In addition, after leaving the job, you must put the resignation report, resignation certificate and labor contract in the file, just like me.

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