Firstly, it was confirmed that the company had no knowledge of it, and secondly, the agreement was signed by a third-party non-company person, with only the company name written on it and no seal. This should have no legal effect. Generally, a contract protected by law must be signed and stamped by the legal person of the company, or a power of attorney signed and stamped by the legal person's principal and recognized and stamped by the legal person. I don’t remember clearly, but it seems that the power of attorney still has to be notarized by a notary public.