If the contract is concluded voluntarily by both parties, it can be valid if it does not violate the mandatory provisions of the law, does not infringe on the legitimate rights and interests of others, and does not violate the interests of the public. What you sign becomes a personal contract between the other party and you. It has nothing to do with the company. You are advised to be cautious. Or negotiate with the other party to terminate the contract and sign a new one.