China Resources Shuanghe Pharmaceutical Co., Ltd. Shuanghe Research and Development Institution EHS Standardization Laboratory Construction Project April 2025 Change Announcement Number: SHBGGG202504240001 The company issued the Shuanghe Research and Development Institution EHS Standardization Laboratory Construction Project April 2025 Announcement (Project Number: SHCGY202504160014) on April 16, 2025, and now makes the following changes: the deadline for quotation before and after the type change is 08:30:00 on April 22, 2025, and 18:00:00 on April 25, 2025. Except for the above changes, the rest of the original announcement is still valid. China Resources Shuanghe Pharmaceutical Co., Ltd. April 24, 2025