Announcement on Listing and Circulation of Restricted Shares in Initial Public Offering

About this update from Shanghai Serum Bio-technology Co., Ltd. Class A

The total number of shares to be listed and circulated is 63,848,000; the listing and circulation date is September 11, 2025.The abstract is for reference only. Please refer to the full text of the announcement on the very day.Link of Full Text for Reference: View Attachment

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