Internal Control Audit Report for the Year 2025
Internal Control Audit Report No. ZB10071
To all shareholders of China Machinery Huanyu Certification Inspection Co., Ltd.:
In accordance with the "Guidelines for Internal Control Audits" and relevant requirements of the Chinese Certified Public Accountant Professional Standards, we audited the effectiveness of internal controls over the financial report of China Machinery Huanyu Certification Inspection Co., Ltd. (hereinafter referred to as "Huanyu Certification") as of December 31, 2025.