Legal analysis: The official seal of the company needs to be kept by a dedicated person in the office. The seal is not allowed to be used or borrowed without permission; any letters, official documents, contracts, letters of introduction, certificates or other company materials issued in the name of the company must be applied for before they can be used; copies or faxes of the official seal text must not be used, and the text must be clear , correct, and must not be altered. If there is any alteration, the official seal must be stamped in its place.

Legal basis: "Company Law of the People's Republic of China"

Article 22 The articles of association of a limited liability company shall specify 11 matters and require all shareholders to: Sign and seal the company's articles of association.

Article 30 After a limited liability company is established, a capital contribution certificate shall be issued to the shareholders. The capital contribution certificate shall specify five items, and the capital contribution certificate shall be stamped by the company.

Article 132 When shares are issued, the shares shall state four main matters, and the shares shall be signed by the chairman of the board and stamped by the company.

Article 167 When a company issues corporate bonds, it must state relevant matters on the bonds, which must be signed by the chairman and stamped by the company.