A labor contract, with only the name written without the seal, is valid as long as other necessary clauses in the contract are clear.
According to the relevant laws and regulations, the labor contract shall come into effect after the employer and the employee reach an agreement through consultation and sign or seal the text of the labor contract.
The text of the labor contract is held by the employer and the employee respectively.
legal ground
Article 490 of the Civil Code
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. 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.