Opening a mask factory requires the following procedures: apply to the administrative department for industry and commerce for registration of a company or individual industrial and commercial households, and apply for a business license according to law; Carve seals; Apply for opening a bank account; Handling tax registration; Production license for industrial products; Health permits and other documents. Article 25 of the Regulations of the People's Republic of China on the Administration of Company Registration: For a legally established company, the company registration authority shall issue the Business License of Enterprise as a Legal Person. The date of issuance of the business license of the company is the date of establishment of the company. The company seals, opens a bank account and applies for tax registration with the Business License for Enterprise as a Legal Person issued by the company registration authority. Article 9 of the Regulations of the People's Republic of China on the Administration of Production Licenses for Industrial Products To obtain a production license, an enterprise shall meet the following conditions: (1) It has a business license; (six) the products meet the requirements of relevant national standards, industry standards and the protection of human health and personal and property safety; (seven) in line with the provisions of the national industrial policy, there is no backward technology, high energy consumption, environmental pollution and waste of resources. Where there are other provisions in laws and administrative regulations, such provisions shall also be complied with. Fourteenth provinces, autonomous regions and municipalities directly under the central government, the competent department of industrial products production license after accepting the application of enterprises, shall organize the examination of enterprises.