Legal analysis: Yes. If it is signed by the company's legal person, financial accountant, or treasurer, it is valid. If it is signed by someone else, it will not be valid. The company has not stamped it, so if anything happens you need to bear it yourself. The company's statement must be stamped and signed by the financial officer to be authentic and valid.

Legal basis: Article 490 of the "People's Republic of China and Civil Code" Where the parties conclude a contract in the form of a contract, the contract is 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.