Xuzhou Huarun Power Co., Ltd. Tongshan Huarun Power Co., Ltd. Oil Filter Procurement Change Announcement Change Announcement No.: DLBGGG202505200003 The Tongshan Huarun Power Co., Ltd. Oil Filter Procurement Announcement (Project No.: 6XZHR0202250400529) issued by our company on April 29, 2025 has been changed as follows: the deadline for quotation before and after the type change is 16:01:09 on May 19, 2025, and 16:01:09 on May 22, 2025. Except for the above changes, the rest of the original announcement is still valid. Xuzhou Huarun Power Co., Ltd. May 20, 2025