any profitable organization must apply for a business license, and catering needs a hygiene license.

Lanzhou Lamian Noodles is a local specialty, a product protected by geographical indications, not a minority protection policy. The relevant regulations are the Regulations on the Protection of Geographical Indications and the Detailed Rules for the Implementation of the Regulations on the Protection of Geographical Indications. You can check it yourself, but the business license and health permit are absolutely indispensable.