Legal analysis: The materials required for trademark transfer are: 1, trademark/registered trademark transfer application (signed or sealed by both parties). 2. Trademark transfer agreement or contract signed by the transferor and the transferee. 3. Identification documents of the transferor and the transferee (if it is a legal person, a license is required). 4. Certificate of registered trademark. 5. Notarial certificate of trademark declaration of the notary office (required by the Trademark Office). 6. If an agent is required to operate, the original and photocopy of the agent's identity certificate shall be provided.

Legal basis: Article 42 of the Trademark Law of People's Republic of China (PRC) assigns a registered trademark, the assignor and the assignee shall sign an assignment agreement and file an application with the Trademark Office. The transferee shall guarantee the quality of the goods using the registered trademark.

Where a registered trademark is transferred, the trademark registrant shall transfer the similar trademark registered on the same commodity or the same or similar trademark registered on similar commodities together.

The Trademark Office shall not approve the assignment that is likely to cause confusion or have other adverse effects, and shall notify the applicant in writing and explain the reasons.

After the transfer of a registered trademark is approved, it shall be announced. The transferee shall enjoy the exclusive right to use the trademark from the date of announcement.