According to Article 44 of the Contract Law, a legally established contract shall take effect upon its establishment. However, the establishment of a contract does not mean that the contract takes effect, because only a legally established contract can take effect.

This contract has no official seal, but it is valid with the signature of the legal representative. ?

Extended data

According to Article 45 of People's Republic of China (PRC) Contract Law

The parties may agree to attach conditions to the validity of the contract. A contract with effective conditions shall take effect when the conditions are met. A contract with termination conditions is invalid when the conditions are met.

If the parties improperly prevent the achievement of conditions for their own interests, the conditions are deemed to have been achieved; Those who improperly contribute to conditional achievement are regarded as conditional failure.

Article 46 The parties may stipulate the term of validity of a contract. A contract with an effective term shall take effect upon the expiration of the term. A contract with a termination period is invalid at the expiration of the period.

Article 47 A contract concluded by a person with limited capacity for civil conduct shall be valid after ratification by a legal agent, but a pure benefit contract or a contract that is suitable for his age, intelligence and mental health may not be ratified by a legal agent.

Refer to Baidu Encyclopedia-People's Republic of China (PRC) and China Contract Law