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

About this update from Sbt Ultrasonic Technology Co., Ltd. Class A

The total number of shares to be listed and circulated this time is 44,981,239; the listing and circulation date is September 29, 2025 (postponed to the next trading day as September 27, 2025 is a non-trading day).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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