Guangzhou social security can buy Foshan

If your company bought social security for you, you can go to Guangzhou Social Security Bureau to transfer it yourself. You just need to work in your new company in Foshan and the new company will accept it. Residence permit is divided into Guangdong residence permit and Guangzhou residence permit. Guangdong residence permit can be used in Guangdong province, but if it is Guangzhou residence permit, it can only be used in Guangzhou. You have to re-apply for Foshan residence permit in Feishan Company Bureau.

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