Only one party signs or seals the contract. If one party (whether it is the party that signs or seals) fulfills the main obligations of the contract and the other party accepts it, the contract is established. If one party to a contract does not sign it on the spot, but signs it afterwards, and the other party accepts it, the contract is also established. One party has the right to request the people's court or arbitration institution to modify or terminate the following contracts:

1, concluded due to major misunderstanding;

2. It is obviously unfair when concluding the contract.

If one party leads the other party to conclude a contract against its true meaning by fraud, coercion or taking advantage of others' danger, the injured party has the right to request the people's court or arbitration institution to modify or cancel it. The people's court or arbitration institution shall not revoke the request of the parties. Contract disputes refer to all disputes between the parties to a contract due to the effectiveness, interpretation, performance, modification and termination of the contract. The content of contract disputes mainly shows that both parties to the dispute have different views on the legal facts that lead to the emergence, change and elimination of the legal relationship of the contract and the content of the legal relationship. The scope of contract disputes covers the whole process of contract from establishment to termination.

This contract is the result of consensus reached by both parties. Since both parties entered into the contract on the basis of voluntariness and equality, there is no doubt that they will perform their obligations according to the contract. However, after the contract is signed, one party may subjectively not want to perform or not fully perform the contract for various reasons.

legal ground

People's Republic of China (PRC) Civil Code

Article 490 Where the parties conclude a contract in the form of a contract, the contract is formed 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.