Operators purchasing health food must check the supplier's license and food factory inspection certificate or other qualified certificates. License refers to the unit that provides Internet access service, and it is the qualification of mobile network information service in value-added telecommunications business. ISP license can be divided into whole network ISP license and ground network ISP license. Operating a website must apply for an ICP license, otherwise it is illegal to operate.

Business license is a certificate issued by the administrative department for industry and commerce to industrial and commercial enterprises and individual operators to engage in certain production and business activities. Its format shall be uniformly stipulated by the State Administration for Industry and Commerce. The registered items include: name, address, person in charge, amount of funds, economic composition, business scope, business mode, number of employees, business period, etc.

Business licenses are divided into originals and duplicates, which have the same legal effect. The original shall be placed in a prominent position in the company's domicile or business premises, and the business license shall not be forged, altered, leased, lent or transferred. Without a business license, industrial and commercial enterprises or individual operators are not allowed to start business, engrave official seals, sign contracts, register trademarks or advertise, and banks are not allowed to open accounts.

"Food Safety Law of People's Republic of China (PRC)" (hereinafter referred to as "Food Safety Law") Article 53 When purchasing food, food business operators shall check the supplier's license and food factory inspection certificate or other qualified certificates (hereinafter referred to as qualified certificates).

Food trading enterprises shall establish a food purchase inspection record system, truthfully record the name, specification, quantity, production date or production batch number, shelf life, purchase date, supplier's name, address and contact information of the food, and keep relevant vouchers. The retention period of records and vouchers shall conform to the provisions of the second paragraph of Article 50 of this Law.

A food business enterprise that implements a unified distribution operation mode may uniformly check the supplier's license and food qualification certificate by the enterprise headquarters, and make a good record of food purchase inspection.

An operating enterprise engaged in food wholesale business shall establish a food sales record system, truthfully record the name, specification, quantity, production date or batch number, shelf life, sales date, name, address and contact information of the purchaser of the wholesale food, and keep relevant vouchers. The retention period of records and vouchers shall conform to the provisions of the second paragraph of Article 50 of this Law.