Beijing Biostar Pharmaceuticals Co., Ltd. — Proxy Solicitation & Information Statement 2025

May 2, 2025

华昊中天
Biostar
Beijing Biostar Pharmaceuticals Co., Ltd.
北京華昊中天生物醫藥股份有限公司
(A joint stock 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）
(Stock code 股份代號: 2563)

Dear Non-registered Holder(s) (Note),

2 May 2025

Beijing Biostar Pharmaceuticals Co., Ltd. (the "Company")
- Extraordinary General Meeting ("EGM") of the Company to be held on Friday, 23 May 2025

The EGM of the Company will be held virtually using online platform at http://meetings.computershare.com/biostar20250523 (the "Online Platform") on Friday, 23 May 2025 at 10:00 a.m. The EGM will be a virtual meeting. Shareholders will be able to view the live video broadcast, participate in voting and submit questions in written form at the EGM through the Online Platform.

Online Attendance at the EGM

You, as a non-registered Holder whose shares are held in the Central Clearing and Settlement System through banks, brokers, custodians, nominees or HKSCC Nominees Limited (collectively, the "Intermediary"), will be able to view the live broadcast at the EGM, cast your votes on the resolutions in real time and submit online questions to the Company. From 9:30 a.m. on Friday, 23 May 2025, you can log in to Online Platform by visiting http://meetings.computershare.com/biostar20250523.

In order to attend the EGM online, you need to (i) contact your Intermediary to appoint you as a proxy and (ii) provide your e-mail address to your Intermediary, before the deadline required by your Intermediary. Details regarding the EGM arrangements including the login details to access the EGM online platform will be sent by Computershare Hong Kong Investor Services Limited, the Company's Hong Kong Branch Share Registrar, to the e-mail address provided by you.

By order of the Board
Beijing Biostar Pharmaceuticals Co., Ltd.
北京華昊中天生物醫藥股份有限公司
Dr. Tang Li
Chairperson and Executive Director

Note: This Letter is addressed to Non-registered Holder(s) of the shares in the Company ("Non-registered Holder" means such person or company whose shares are held in the Central Clearing and Settlement System and who has notified the Company from time to time through Hong Kong Securities Clearing Company Limited that he/she/it wishes to receive the Corporate Communications). If you have sold or transferred your shares in the Company, please disregard this Letter.

各位非登記持有人（附註）：

北京華昊中天生物醫藥股份有限公司（「本公司」）
- 於 2025 年 5 月 23 日（星期五）舉行之本公司股東特別大會（「股東特別大會」）

本公司之股東特別大會將於 2025 年 5 月 23 日（星期五）上午 10 時以電子形式透過網上平台 http://meetings.computershare.com/biostar20250523（「網上平台」）舉行。股東可透過網上平台觀看直播、投票及提交問題。

以網上方式出席股東特別大會

如閣下為通過銀行、經紀、託管商、代理人或香港中央結算（代理人）有限公司（統稱「中介公司」）於中央結算及交收系統持有股份的非登記持有人，閣下將可透過網上直播觀看股東特別大會，實時就決議案投票，並可於網上向本公司提交問題。由 2025 年 5 月 23 日（星期五）上午 9 時 30 分開始，閣下可瀏覽 http://meetings.computershare.com/biostar20250523 以登入股東特別大會網上平台。

閣下須(i)聯絡閣下之中介公司以委任閣下為代表；及(ii)於閣下之中介公司所規定之期限前向該中介公司提供閣下之電郵地址，以便以網上方式出席股東特別大會。有關股東特別大會安排之詳情（包括進入股東特別大會網上平台之登入資料），將會由本公司之香港證券登記分處香港中央證券登記有限公司發送至閣下所提供之電郵地址。

承董事會命
Beijing Biostar Pharmaceuticals Co., Ltd.
北京華昊中天生物醫藥股份有限公司
主席及執行董事
Tang Li（唐莉）博士

2025 年 5 月 2 日

附註：此為於本公司股份非登記持有人（「非登記持有人」指所持有的本公司股份存放於中央結算及交收系統的人士或公司，透過香港中央結算有限公司不時向本公司發出通知，表示欲收取公司通訊）。倘閣下已出售或轉讓所持有的本公司股份，則毋須理會本函件。