（Stobk Code 股份代號：8247） 中生北控生物科技股份有限公司 BIOSINO BIO-TECHNOLOGY AND SCIENCE INCORPORATION (a joint stock limited company incorporated in the People's Republic of China with limited liability) （於中華人民共和國註冊成立的股份有限公司） NOTIFICATION LETTER 通知信函 Dear Non-registered Shareholder(s) (Note 1) , 2 April 2026 Biosino Bio-Technology and Science Incorporation (the "Company") – Notification of publication of Circular, Notice of AGM and Proxy Form (the "Current Corporate Communication") The English and Chinese versions of the ...