Shanghai Runhongsheng Real Estate Development Co., Ltd. East China Region Shanghai Jing'an District Nanxi Community C050401 Unit 115-12 Project Sound Insulation and Noise Reduction Engineering Change Announcement Change Announcement No. BGGG202504240001 Our company issued the Sound Insulation and Noise Reduction Engineering Announcement for the East China Region Shanghai Jing'an District Nanxi Community C050401 Unit 115-12 Project (Project No. CGFA2025040300146) on April 10, 2025, and now makes the following changes: The deadline for quotation after the change in type is 15:20:33 on April 24, 2025, 15:00:00 on April 28, 2025, and the deadline for pre bid clarification is 15:21:29 on April 20, 2025. At 12:00:00 on April 25th, the original announcement remains valid except for the aforementioned changes. Shanghai Runhongsheng Real Estate Development Co., Ltd. April 24, 2025