Yantai Huarun Nylon Co., Ltd. Yantai Huarun Nylon Co., Ltd. Nylon 66 Plant Pure Water Unit RO Membrane Offline Cleaning Procurement Inquiry Change Announcement Change Announcement No.: HXCLBGG202504150001 The procurement inquiry announcement for RO membrane offline cleaning of Yantai Huarun Nylon Co., Ltd. Nylon 66 Plant Pure Water Unit Pure Water Unit RO Membrane issued by our company on April 11, 2025 (Project No.: HXCLCGXY202504100006）， The following changes have been made: the deadline for quotation before and after the type change is 08:00:00 on April 15, 2025, and 08:00:00 on April 17, 2025. The deadline for clarification before the bid is 08:00:00 on April 15, 2025, and 08:00:00 on April 17, 2025. Except for the above changes, the rest of the original announcement remains valid. Yantai Huarun Nylon Co., Ltd. April 15, 2025