1. Required materials "Trademark Agency Power of Attorney": If you entrust a trademark agency to act as an agent, you must provide a power of attorney stamped with the seal of the assignee. If transferees outside the mainland want to apply for trademark transfer in China, they must entrust a trademark agency to do so. "Application Form for Transfer of Registered Trademark": If you entrust an agency to apply for trademark transfer, it will be prepared by the agency and must be stamped or signed by both the transferor and the transferee. A copy of the transferee’s business license or certification documents from public institutions, associations and other organizations with legal personality. If the transferee is outside the mainland, such documents are not required. Special certification materials: When transferring the transferor's registered trademark for medicines, medical nutritional foods, medical nutritional drinks and baby food, the transferee needs to provide certification documents from the health administration department, namely the "Pharmaceutical Production Enterprise License" or " "Pharmaceutical Business Enterprise License", if the above two certificates have not been obtained, the approval document issued by the health administrative department agreeing to establish a pharmaceutical production or business enterprise; if the transferor uses it as a disinfectant trademark, the transferee needs to provide the approval document from the health and epidemic prevention department prove. When transferring trademarks for cigarettes, cigars and packaged cut tobacco, the transferee must provide documents proving production approval by the national tobacco authority. Applicants outside mainland China do not require such documents. If an enterprise fails to complete the transfer procedures in time due to merger, separation or merger and the stamp has become invalid, the transferor's stamp may not be affixed, but a valid certification document from the transferor's competent department or a certification document from the local industrial and commercial administration department must be provided. 2. Notes 1. The seller guarantees that the registered trademark is the true intention of the owner of the registered trademark. The seller guarantees the authenticity, legality and validity of the documents provided. The transfer nature of the registered trademark is a permanent transfer of trademark ownership. 2. The registered trademark is a legal and valid trademark. 3. The transferred trademark has not been licensed to a third party for use before the date of transfer; the transferred trademark has not been in dispute with a third party before the transfer; the transferred trademark has not been subject to property litigation preservation by a third party before the transfer; 4. In accordance with the "China According to Article 21 of the Implementing Rules of the Trademark Law of the People's Republic of China, Party A shall transfer the same or similar trademarks registered on the same or similar goods to Party B. 5. From the date of signing of the contract, the seller promises not to operate or allow others to operate a trademark that is identical or similar to the transferred trademark within the validity period of registration, nor to engage in any commercial activities that compete with the trademark. To sum up, this is an introduction to the materials that need to be provided for trademark sales in Hangzhou, as well as the matters that need to be paid attention to during the purchase and sale process, so that everyone can understand it.