Legal analysis: It should take effect. Red-headed documents are a general term. Many official documents are also red-headed documents, but they can be stamped according to the Regulations on the Administration of Official Documents, such as meeting notices.

Legal basis: Article 165 of the Civil Code of People's Republic of China (PRC) * * * If the power of attorney is in written form, the power of attorney shall specify the agent's name, agency matters, authority and time limit, and shall be signed or sealed by the client.

Article 493 Where a contract is concluded by the parties in the form of a contract, the place where the contract is finally signed, sealed or fingerprinted is the place where the contract is established, unless otherwise agreed by the parties.