That is, you are engaged in finance, sales, drivers, finance and other work. In short, when you have some money-related (direct or indirect) jobs, you need someone with a local (Shenzhen) household registration to provide you with a guarantee. In case something happens, you can't bear it yourself. The company can ask your guarantor to take some responsibility for you!

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