If the agreement in the contract must be stamped with the official seal and signed by the legal person, the unsigned contract has no legal effect. If there is no express provision, it is legal and effective to affix the official seal without signing. When signing a contract, both parties need to sign it on the condition of consensus and equality, and neither party can coerce others to sign the contract.

Legal analysis

After the parties have agreed with others, they will also sign corresponding contracts, so the agreed matters and the rights and obligations of both parties will also be stated in the contract. If both parties need to perform according to the contents stipulated in the contract after signing the contract, if the contract is signed under coercion or in violation of laws or social interests, it is also an invalid contract. The true expression of will means that the expression behavior of a contracting party should truly reflect its inherent meaning of validity, that is, its meaning of validity is consistent with the expression behavior. As an effective element of a contract, it is a natural requirement of the principle of party autonomy. If the expression of intention is untrue, the impact on the effectiveness of the contract shall be determined according to the specific circumstances. In case of general misunderstanding, this contract is still valid. If there is a major misunderstanding, the contract can be cancelled. In the case that the contract is in danger of taking advantage of others and obviously unfair, the contract can be terminated. If a contract is concluded by fraud or coercion, which harms the interests of the state, the contract is invalid, and if it does not harm the interests of the state, the contract may be cancelled. In principle, natural persons must have full capacity to sign contracts. If a person with limited capacity and a person without civil capacity cannot sign a contract in person, their legal representatives shall sign it on their behalf.

legal ground

Article 490 of the Civil Code of People's Republic of China (PRC): If the parties conclude a contract in the form of a contract, the contract is concluded when the parties sign, seal or fingerprint it. 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.