Illegal. It is forbidden for any unit or individual to buy or sell seals, and it is forbidden to make or use seals illegally. Non-governmental organizations registered by enterprises, institutions and civil affairs departments without superior competent departments shall apply to local public security organs at or above the county level for quasi-engraving procedures with their business licenses, registration certificates issued by registration management departments or certificates issued by local police stations.

Article 490 of the Civil Code If the parties conclude a contract in the form of a contract, the contract is established when the parties sign, seal or press their fingerprints. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it.

A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.