Announcement of Outsourced Maintenance and Change of Boiler Induced Draft Fan Hydraulic Cylinder of Gansu Power Investment Jinchang Power Generation Co., Ltd. Plant 1 Change Announcement No.: GSDTBGGG202504150002 Announcement of Outsourced Maintenance and Change of Boiler Induced Draft Fan Hydraulic Cylinder of Plant 1 issued by our company on April 11, 2025 (Project No.: GSDT2025041100013）， The following changes have been made: the deadline for quoting before and after the type change is 09:23:36 on April 15, 2025, and 09:50-16 on April 16, 2025. Except for the above changes, the remaining content of the original announcement remains valid. Gansu Power Investment Jinchang Power Generation Co., Ltd. April 15, 2025