What documents should be submitted to request patent fee reduction?

Where the patent applicant or patentee requests to reduce the patent fee, it shall submit the request for reduction and relevant certification materials. If a patent applicant or patentee submits a patent fee waiver request through the patent affairs service system and it is approved for filing after examination, it only needs to submit the fee waiver request again within a natural year without submitting relevant certification materials. Article 6 of the Measures for the Reduction and Exemption of Patent Fees