A contract stamped with the official seal but not signed is still valid in most cases. According to the relevant laws and regulations, when the parties conclude a contract in the form of a contract, as long as the intentions of both parties are true and the contents of the contract do not violate the legal provisions and public order and good customs, even if the contract has only an official seal and no signature, it is legally binding. A contract is established when all parties sign, seal or press their fingerprints. Even if one party fulfills its main obligations and the other party accepts it, the contract is also established. Therefore, a sealed and unsigned contract can be regarded as a valid contract under certain conditions.
Legal effect of official seal:
1. Definition of official seal: official seal is the legal symbol of an enterprise, organ or other organization to prove the formality and authenticity of a document or event;
2. The function of the official seal: legally, the use of the official seal usually means the organization's recognition and commitment to the contents of the document;
3. Official seal and signature: In some cases, the official seal can replace the signature of the legal representative, but it depends on the specific contract type and agreement;
4. Validity of the contract: Whether the contract is valid depends not only on whether it is stamped or signed, but also on whether the contract content conforms to the legal provisions and whether both parties have the corresponding contracting ability;
5. Dispute settlement: If one party to the contract disagrees with the validity of the sealed but unsigned contract, it may need to solve the dispute through legal channels.
To sum up, a contract stamped with the official seal but not signed is still valid in most cases as long as the contents of the contract conform to the law, public order and good customs.
Legal basis:
People's Republic of China (PRC) Civil Code
Article 490
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.