Internal Control Audit Report
Audit No. Tianjian [2026] 1326
To all shareholders of Sanhe Tongfei Refrigeration Co., Ltd.:
In accordance with the "Guidelines for Internal Control Audits" and relevant requirements of the Chinese Certified Public Accountant Practice Standards, we audited the effectiveness of internal controls over the financial report of Sanhe Tongfei Refrigeration Co., Ltd. (hereinafter referred to as Tongfei Co.) as of December 31, 2025.