, 31 October 2025 NOTIFICATION LETTER 通知信函 The following document(s) of Wai Chun Bio-Technology Limited (the "Company") has/have been prepared in English and Chinese and is/are available on the websites of the Company at www.0660.hk and The Stock Exchange of Hong Kong Limited at www.hkexnews.hk (collectively "Websites"):- Dear Non-registered Shareholder(s)(Note 1) (Incorporated in the Cayman Islands with limited liability) （於開曼群島註冊成立之有限公司） (Stock Code 股份代號: 660) • Annual Report 2024/2025 You may at any time ...