The agreement will only take effect if signed by the legal person. As a company, the signature of the legal representative or the company's official seal has the same legal effect and is not invalid due to the lack of the legal person's signature or the company's seal. During the signing process of the contract, both parties can agree on how the contract will take effect. 1. Is the agreement effective only with the signature of the legal person? The agreement is effective only with the signature of the legal person. Article 490 of the Civil Code stipulates that if the parties conclude a contract in the form of a contract, the contract shall be established when both parties sign, seal or fingerprint. Before signing, sealing or fingerprinting, one party has performed its main obligations and the contract is established when the other party accepts it. Laws and administrative regulations stipulate or the parties agree that a contract should be concluded in written form. If the parties do not use written form but one party has performed its main obligations and the other party accepts it, the contract is established. Accordingly, the effective method of the contract falls within the scope of the autonomy of both parties, and is valid as long as it does not violate the mandatory provisions of the law. Therefore, regarding the issue of contracts or agreements signed by the company, not all contracts must be stamped with the company's official seal to be valid. The signature of the legal representative often has the same legal effect as the company's official seal. In order to avoid the recurrence of similar disputes, on the one hand, the legal representative should be carefully selected; on the other hand, when drafting and reviewing the contract, attention should be paid to the agreement on the effective method of the contract. For example, you can stipulate in the contract that "this contract will officially take effect from the date it is signed by the company's legal representative and stamped with the official seal." 2. Is it valid if it only has an official seal but no signature of the legal person? A contract with only an official seal but no signature of the legal representative will generally be legally valid if the party signing the contract has obtained authorization from the company. For a contract that only has an official seal but no signature of the legal representative, whether it is valid or not should be determined based on the actual situation and in conjunction with legal provisions. Article 143 of the Civil Code stipulates that civil legal acts are valid if they meet the following conditions: (1) The actor has the corresponding capacity for civil conduct; (2) The expression of intention is true; (3) It does not violate laws and administrative regulations The mandatory provisions do not violate public order and good customs. Article 13 of the "Company Law" stipulates that the legal representative of a company shall be the chairman, executive director or manager in accordance with the provisions of the company's articles of association and shall be registered in accordance with the law. If the legal representative of the company changes, the change registration must be carried out. 3. Does the contract need to be signed by a legal person? I would like to remind you that a contract does not have to be signed by a legal person to be a valid contract. For example, signing a labor contract is an agreement signed by the employer and the employee after mutual agreement and final agreement. Generally, the employer will send a The legal representative signs a contract with the employee as a party of the company. This means that the legal representative represents the company or the employer. Therefore, he needs to stamp the company seal and sign his name. Even if there is no legal person's signature, the contract is still valid.