Donghua Engineering Technology Co., Ltd. High Voltage Inverter Comparison and Procurement Change Announcement Donghua Engineering Technology Co., Ltd. High Voltage Inverter - Section Package 01 (Procurement Number: 202116-D1-K362-R079B), now made the following changes due to bidding issues: 1. Project Information Procurement Project Number: 202116-D1-K362-R079B Procurement Project Name: High Voltage Inverter Section (Package) Number: 202116-D1-K362-R079B Please contact the contact person below. 3. Contact Information Purchaser: Donghua Engineering Technology Co., Ltd. Address: No. 70 Wangjiang East Road, Hefei City, Anhui Province Postal Code: 230024 Contact Person: Zhang Chaofang Phone: 13855101085 Email: zhangchaofang@chinaecec.com Donghua Engineering Technology Co., Ltd. May 19, 2025