It is illegal for a company to transfer its official seal to others. In civil, it is an invalid civil legal act for a company to give its official seal to others after transfer. If the other party uses the official seal to engage in civil activities, it belongs to the agency by estoppel and is invalid without ratification. Forging seals is an illegal act in violation of the Law on Public Security Administration Punishment, and it only constitutes a crime to a certain extent. Carving more than three seals privately may constitute a crime.

legal ground

Article 52 of the Public Security Administration Punishment Law

Whoever commits one of the following acts shall be detained for more than 10 and less than 15, and may also be fined less than 1000 yuan; If the circumstances are relatively minor, he shall be detained for not less than five days but not more than ten days, and may also be fined not more than 500 yuan: (1) Forging, altering or buying or selling official documents, certificates, certification documents and seals of state organs, people's organizations, enterprises, institutions or other organizations; (2) buying, selling or using forged or altered official documents, certificates and supporting documents of state organs, people's organizations, enterprises, institutions or other organizations; (3) Forging, altering or reselling tickets, boat tickets, air tickets, tickets for cultural performances, sports competitions or other valuable tickets; (4) Forging or altering a ship's registration number, trading or using a forged or altered ship's registration number, or altering a ship's engine number.