A contract shall be valid only if it is not signed and sealed by one party and meets the statutory conditions for entry into force. Where a contract is concluded in the form of a contract, one party has fulfilled its main obligations before signing, sealing or fingerprinting, and the contract is established when the other party accepts it. If the contract meets the statutory conditions for entry into force, it shall come into force upon its establishment.

Legal objectivity:

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. Article 502 A contract established in accordance with the law in the first paragraph shall take effect upon its establishment, unless it is otherwise provided by law or agreed by the parties.