INSIDE INFORMATION ANNOUNCEMENTISSUANCE OF THE FILING NOTICE BY THE CSRCFOR THE IMPLEMENTATION OF THE H SHARE FULL CIRCULATIONBY THE COMPANY

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.* NANJING SINOLIFE UNITED COMPANY LIMITED南京中生联合股份有限公司 (A joint stock limited liability company incorporated in the People’s Republic of China) (Stock Code: 3332) INSIDE INFORMATION ANNOUNCEMENT ISSUANCE OF THE FILING NOTICE BY THE CSRC FOR THE IMPLEMENTATION OF THE H SHARE FULL CIRCULATION BY THE COMPANY This announcement is made by Nanjing Sinolife United Company Limited* (the ‘‘Company’’) pursuant to Part XIVA of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong) and Rule 13.09(2)(a) of the Rules (the ‘‘Listing Rules’’) Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the ‘‘Stock Exchange’’).Reference is made to the announcement of the Company dated 16 May 2024 (the ‘‘Announcement’’) in relation to the proposed implementation of the H share full circulation by the Company. Unless otherwise defined capitalised terms used herein shall have the same meanings as those defined in the Announcement.The Board is pleased to announce that the Company received a filing notice dated 28 June 2024 (the ‘‘Filing Notice’’) issued by the CSRC regarding the Company’s proposed implementation of the H share full circulation. According to the Filing Notice the Company has completed the filing with the CSRC in respect of the conversion of 673828770 Domestic Shares (representing approximately 71.21% of the total issued share capital of the Company as at the date of this announcement) into H shares which may be listed and traded on the Stock Exchange. The Filing Notice will be valid for 12 months from 28 June 2024.The Company will apply to the Listing Committee of the Stock Exchange for the approval of the listing and permission to deal in the relevant H Shares.As at the date of this announcement details of the Company’s implementation plan of the Conversion and Listing have not been finalised and the completion of the Conversion and Listing is subject to the performance of other relevant procedures required by the CSRC the Stock Exchange and other relevant onshore and offshore regulatory authorities. The Company will make further announcements on the progress of the Conversion and Listing in compliance with the Listing Rules as and when appropriate.– 1 –Shareholders and potential investors of the Company are advised to exercise caution when dealing in the shares of the Company.By order of the Board Nanjing Sinolife United Company Limited* Gui Pinghu Chairman Nanjing the People’s Republic of China 3 July 2024 As at the date of this announcement the executive Directors are Mr. Gui Pinghu Ms. Zhang Yuan and Ms. Zhu Feifei; and the independent non-executive Directors are Mr. Yu Bo Ms.Cai Tianchen and Mr. Wang Wei.* For identification purposes only –2–