if the products sold in your restaurant are provided by another company (OEM), then this company must be qualified. The most basic ones are:

business license, tax registration, organization code and production license (QS), which are necessary. If that company is not qualified, the products of their company are sold in your store. If it is found in the industrial and commercial or quality inspection, the consequences will be that there are no products sold, and fines or confiscation will be required.

if you want to build a processing factory under your own company name, you need to apply for an additional business license and a catering hygiene license at the health department.