CR Vanguard Co., Ltd. CR Vanguard 2025-2027 Environmental Hearing System Design and Copyright Service Project Change Announcement No.: WJBGGG202504280001 CR Vanguard 2025-2027 Environmental Hearing System Design and Copyright Service Project Announcement (Project No.: WJCGXY202504250002）， The following changes have been made: the deadline for quotation before and after the type change is 09:00:00 on April 30, 2025, and 12:00:00 on May 6, 2025. The deadline for clarification before the bid is 09:00:00 on April 29, 2025, and 12:00:00 on May 6, 2025. Except for the above changes, the rest of the original announcement remains valid. CR Vanguard Co., Ltd. April 28, 2025