I don't know whether you are talking about supplementary evidence of trademark registration or trademark replacement registration certificate. In the former case, preparations can be made according to the notice issued by the Trademark Office. In the latter case, the following materials need to be prepared: (1) Entrust the trademark China registered in the Trademark Office to handle it. (2) The applicant shall go directly to the Trademark Registration Hall of the Trademark Office (enterprises in Zhongguancun National Independent Innovation Demonstration Park may go to Zhongguancun Office of the Trademark Office). Procedure (1) Where a trademark agency in China is entrusted, the applicant may voluntarily choose any trademark agency in China registered with the Trademark Office. All trademark China institutions registered in the Trademark Office are published in the column of "China institutions". (2) If the applicant goes directly to the trademark registration hall of the Trademark Office, the applicant can go through the following steps: preparing the application documents → submitting the application documents in the acceptance window of the trademark registration hall → typing the receipt barcode in the coding window → preparing the application documents for paying the application fee in the payment window (1) Application documents to be submitted 1. Application for reissue of trademark registration certificate; Two, a copy of the trademark registrant's main qualification certificate (business license, ID card, etc.). ) Seal or sign for confirmation; 3. Go directly to the trademark registration hall and submit the agent's ID card and a copy (the original will be returned after comparison); Where a Chinese trademark agency is entrusted, the Power of Attorney for Chinese Trademark shall be submitted. (2) Specific requirements. The application documents should be typed or printed. Two, fill in the name and address of the applicant in the application for replacement certificate should be consistent with the current trademark registrant; The trademark registration number and category shall be consistent with the original trademark registration certificate. Payment of fees The fee for renewing the Trademark Registration Certificate is RMB 1000 per copy. Entrusted by the trademark agency in China, the Trademark Office deducts the expenses from the advance payment of the trademark agency in China. If the Trademark Registration Certificate is lost, and the application for a replacement certificate is complete and meets the requirements, the Trademark Office will publish a statement of loss in the Trademark Announcement and issue a Notice of Obtaining a Trademark Registration Certificate after examination and approval; If the Trademark Registration Certificate is damaged, the applicant shall return the Trademark Registration Certificate to the Trademark Office when submitting an application for replacement. If the application for a replacement certificate is complete and meets the requirements, the Trademark Office will issue a Notice of Obtaining a Trademark Registration Certificate after examination. (1) Go directly to the trademark registration hall. After receiving the Notice of Obtaining a Trademark Registration Certificate from the Trademark Office, the applicant shall promptly go to the trademark registration hall to obtain a trademark registration certificate as required by the notice. If the Notice of Receiving a Trademark Registration Certificate is not received for various reasons, the following documents shall be submitted when receiving the Trademark Registration Certificate in the trademark registration hall: 1. Copy of subject qualification certificate (business license, ID card, etc.). ) confirmed by the seal or signature of the trademark registrant; The second is the letter of introduction from the licensing unit; Three. Witness's ID card and photocopy (the original will be returned after comparison); (2) If it is entrusted to a trademark agency in China, the Trademark Office will mail the trademark registration certificate to the trademark agency in China. Precautions 1. The applicant's name, address, postal code, China number and other contact information must be clearly and accurately filled in for easy contact. 2. If the replacement certificate is handled together with the change of name, and the replacement certificate is applied in the name of the trademark registrant before the change, the name of the reissued trademark registration certificate shall be the name of the original trademark registrant; Where an application for a replacement certificate is made in the name of the changed trademark registrant, the name of the replacement trademark registration certificate shall be the changed trademark registrant. If the official seal of the original trademark registrant has expired, the application may be stamped with the official seal of the changed trademark registrant, but the corresponding certificate issued by the administrative department for industry and commerce shall be submitted. 3. If the replacement is handled together with the transfer, and the replacement is applied in the name of the transferor, the reissued trademark registration certificate shall be in the name of the transferor; Where an application for replacement is made in the name of the assignee, the trademark registration certificate to be reissued shall be in the name of the assignee. 4. Go directly to the trademark registration hall. If the applicant has not received the Notice of Obtaining a Trademark Registration Certificate six months after applying for a replacement certificate, he can make a free inquiry to the Trademark Office. Entrusted by the Chinese trademark agency, the Chinese trademark agency is responsible for inquiring with the Trademark Office. (For details, see "China vs. the United States. 000 Good Window China".