China Resources Power Jiaozuo Co., Ltd. Announcement of Change for Sulfuric Acid (Laboratory Use) Announcement No. DLBGGG202504240003 The announcement of China Resources Power Jiaozuo Co., Ltd. Sulfuric Acid (Laboratory Use) Announcement (Project No. 6HDJZ02025040025) issued by our company on April 5, 2025, now makes the following changes: the deadline for time quotation before type change is 14:00:00 on April 23, 2025, and the deadline for clarification before bid on April 27, 2025 is 14:00:00 on April 22, 2025, and 12:00:00 on April 26, 2025. Except for the above changes, the rest of the original announcement is still valid. China Resources Power Jiaozuo Co., Ltd. April 24, 2025