Of course. The trade union may affix its seal to the labor contract, but it cannot affix its seal on behalf of the employer. Trade unions are mass organizations of the working class, representing the interests of workers and safeguarding their legitimate rights and interests according to law. Trade unions sign collective contracts with employers on behalf of employees. In the process of concluding labor contracts between employers and employees, trade unions can participate in safeguarding the legitimate rights and interests of employees. For the labor contract concluded between the employer and the employee through consultation, the trade union can stamp to prove that it is equal negotiation and does not violate the collective contract, but it cannot stamp the administrative seal or special seal for the labor contract on behalf of the employer. If the parties enter into a contract in the form of a contract, the contract shall be 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.

The official seal of the trade union is also approved by the public security, so it has legal effect. The official seal of any organization or unit has legal effect. The legal effect of the official seal is probative force and credibility. Where a document is stamped with the official seal (a document in a broad sense, not just a red-headed document), the official seal unit shall be responsible for the contents of the document. This is the probative force and credibility, and this is the legal effect. The official seal refers to the seal used by organs, organizations, enterprises and institutions. Because the Ministry of Public Security has not made uniform provisions on the engraving procedure, the provisions on the engraving procedure vary from place to place. According to the different types of seals, the procedures are different.

Is it necessary to sign a contract with a special seal?

1, not necessarily, the official seal will do.

2. As long as it is a legal enterprise, the official seal of the company registration is ok. It's just that the use of special seals for contracts, trade unions and finance is restricted, and problems are easy to find. So generally speaking, qualified companies will set up special seals for special departments or special things.

Legal basis:

Labor Contract Law

Article 16

A labor contract shall be reached through consultation between the employer and the employee, and shall come into effect after the text of the labor contract is signed or sealed by the employer and the employee. The text of the labor contract is held by the employer and the employee respectively.