On the morning of April 14, 2025, at 9:00 am, our company conducted a public selection of service units for the procurement project of the self-monitoring service third-party intermediary agency of Guangyuan Airport Sewage Treatment Plant. The following units are proposed as the selected candidates for this selection. Number Project Name Service Content Selected Amount 1 Guangyuan Airport Sewage Treatment Plant Self monitoring Service Third party Intermediary Agency Selection Service Procurement Project Procurement Services Sichuan Xinzeyuan Testing Co., Ltd., RMB 303800, in accordance with the contract and pollutant discharge permit requirements. The results of the election are now publicly announced. If you have any objections, please report them to our company in writing within 3 days from the date of this announcement. This is hereby announced. Contact person and phone number: Wang Liping, 0839-6211556. Guangyuan Water Investment Co., Ltd. April 14, 2025