Yes.

A personal seal (private seal) in seal script font has legal effect, and a personal seal (private seal) in any font has legal effect.

Article 32 of the "Contract Law" stipulates: If the parties conclude a contract in the form of a contract, the contract shall be established when both parties sign or seal it." For legal persons or other organizations, the official seal must be affixed. Under the provisions of the Contract Law, a contract is still valid if it is affixed with an official seal but without the signature or seal of the legal representative or person in charge or his authorized agent.