Does the company department seal have legal effect?

The company's departmental seal has legal effect. However, the official seal must be able to specifically represent the company and be used within the corresponding scope. If the official seal does not specifically represent the company name, or if the official seal is beyond the scope of application, the contract concluded shall be deemed invalid.

legal ground

Article 143 of the Civil Code of People's Republic of China (PRC)

A civil juristic act that meets the following conditions is valid:

(1) The actor has corresponding capacity for civil conduct;

(2) the meaning is true;

(three) does not violate the mandatory provisions of laws and administrative regulations, and does not violate public order and good customs.

Article 490

If the parties enter into a contract in the form of a contract, the contract shall be established when the parties sign, seal or press their fingerprints. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it.