according to the pledge registration procedure for the exclusive right to use trademarks, the Trademark Office of the State Administration for Industry and Commerce shall cancel the pledge registration under any of the following circumstances: (1) If it is found that it is inconsistent with the facts after registration; (2) The following circumstances are found after registration: 1. The pledgor is not the legal owner of the exclusive right to use a trademark; 2. The ownership of the exclusive right to use a trademark is unclear; 3. Others do not conform to the provisions of laws and regulations. (3) It is found that the pledge contract is invalid after registration. Where the name and address of the applicant for the pledge registration of the exclusive right to use a trademark change, or the pledge transfer occurs due to the transfer of the principal creditor's rights and debts or other reasons, the parties concerned shall handle the change registration, supplementary registration or re-registration of the pledge of the exclusive right to use a trademark. To apply for registration of change or supplementary registration, the certificate of change and the Registration Certificate of Pledge of the Exclusive Right to Use a Trademark issued by the registration authority shall be submitted.