The law does not clearly stipulate what chapter a contract should be stamped with. The seals required for concluding a contract shall be determined by the parties through consultation according to the trade habits and trading practices, and the official seal, legal person seal, contract seal, invoice seal and other seals may be used as needed.

legal ground

Article 3 of the Measures for the Administration of Public Security of Seals

The term "seal" as mentioned in these Measures refers to the official seal and personal seal with legal effect.

The term "official seal" as mentioned in these Measures refers to the legal names of state power organs, party and government organs, judicial organs, organs participating in and discussing state affairs, armed forces, armed police, democratic parties, trade unions, Communist Youth League, women's federations and other organs, organizations, enterprises and institutions, civil affairs departments and registered non-governmental organizations, neighborhood committees, deliberation and coordination institutions and non-permanent institutions, as well as special seals for contracts, finance, taxation, invoices and other businesses with legal names.

202 1 Article 490 of the Civil Code.

If the parties enter into a contract in the form of a contract, the contract shall be 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.