Legal analysis: the official seal is originally unnumbered, and the official seal without coding is also valid. This is normal. There are generally the following types of company seals: 1, official seal, and only the seal engraved with the company name. 2. The company's contract seal, financial seal and other special seals must be numbered. 3. The seals of various departments of the company, such as administrative office seal, financial seal and human resources seal. There is no need to have a code; No coding is not necessarily false. In order to prevent forgery and facilitate inquiry, many official seals are engraved with business license codes. However, there are also many official seals that are not coded. The financial chapter is generally not coded. It is impossible to identify the authenticity with the official seal alone, and it is necessary to check the business license and tax license.

Legal basis: Article 12 of the Company Law of People's Republic of China (PRC). The business scope of the company is stipulated in the articles of association and registered according to law. A company may amend its articles of association and change its business scope, but it shall register the change. Projects that are required to be approved by laws and administrative regulations in the company's business scope shall be approved according to law.