Touyun Biotech Group Limited 透 雲 生 物 科 技 集 團 有 限 公 司 (Incorporated in Bermuda with limited liability) NOTIFICATION LETTER 通知信函 22 April 2026 Dear Registered Shareholders, Touyun Biotech Group Limited (the "Company") — Notice of publication of Circular dated 22 April 2026 together with Notice of Annual General Meeting and Proxy Form (the "Current Corporate Communication") Website: www.touyunbiotech.com.hk (Stock Code: 1332) Should you have any queries relating to this notification, please call the Branch Sha ...