Yes, in general, a contract without a seal is valid. Stamping is only a form, and the other party's approval or actual performance or the signature of the legal representative all indicate that the contract is valid. The effect of signature is confirmation, and it is not necessary to stamp. The validity of a contract is used to confirm whether the behavior is valid in the event of a dispute. Article 490 of the Civil Code stipulates that if the parties conclude a contract in the form of a contract, the contract is 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.

Legal objectivity:

Article 13 of People's Republic of China (PRC) Company Law The legal representative of the company shall be the chairman, executive director or manager in accordance with the articles of association, and shall be registered according to law. Where the legal representative of the company changes, it shall go through the registration of change. Provisions on the Administration of Registration of Legal Representatives of Enterprise Legal Persons Article 3 The legal representative of an enterprise legal person (hereinafter referred to as the legal representative) has been approved and registered by the enterprise registration authority and obtained the qualification of legal representative. Article 5 The procedures for the creation and removal of the legal representative of an enterprise shall conform to the provisions of laws, administrative regulations and the articles of association of an enterprise as a legal person. Article 9 The legal representative shall exercise his functions and powers within the scope of functions and powers stipulated by laws, administrative regulations and the articles of association of an enterprise as a legal person.