What should I do if another company leaves and my company turns to social security?

If the current unit and the original unit are in the same city, you can pay insurance directly in the current company.

Insurance in different places requires the Social Security Bureau of the city where the original unit is located to issue insurance payment vouchers, and then go through the social security transfer procedures in the city where the current work place is located. But you need to pay insurance here before you can transfer from the original city to this city.