Shanghai Junshi Biosciences : NOTICE OF THE 2021 FIRST CLASS MEETING OF H SHAREHOLDERS

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SHANGHAI JUNSHI BIOSCIENCES CO., LTD.*

ɪऎёྼ͛يᔼᖹ߅Ҧٰ΅Ϟࠢʮ̡

(a joint stock company incorporated in the People's Republic of China with limited liability)

(Stock code: 1877)

NOTICE OF THE 2021 FIRST CLASS MEETING OF H SHAREHOLDERS

NOTICE IS HEREBY GIVEN that the 2021 first class meeting of H Shareholders (the "Class Meeting of H Shareholders") of Shanghai Junshi Biosciences Co., Ltd.* (the "Company") will be held immediately after the conclusion of the 2021 first class meeting of A shareholders of the Company (or any adjournment thereof) at 15th Floor, Building 7, No. 6,

Lane 100, Pingjiaqiao Road, Pudong New Area, Shanghai, the PRC on Tuesday, 29 June 2021, to consider and, if thought fit, approve the following resolution:

SPECIAL RESOLUTION(8)

1. The proposal in relation to the amendments to the Articles of Association and the Rules of Procedures of the General Meetings, the Board of Directors and the Board of Supervisors and Industrial and Commercial Registration of Change (9)

By Order of the Board

Shanghai Junshi Biosciences Co., Ltd.*

Mr. Xiong Jun

Chairman

Shanghai, PRC, 30 March 2021

Notes:

• 1. The register of members of H shares of the Company will be closed from Monday, 21 June 2021 to Tuesday, 29 June 2021, both days inclusive, during which period no transfer of H shares of the Company will be registered, in order to determine the entitlements of the shareholders of the Company to attend and vote at the Class Meeting of H Shareholders. In order to be eligible to attend and vote at the Class Meeting of H Shareholders, holders of H shares of the Company whose transfer documents have not been registered are required to deposit all properly completed share transfer forms together with the relevant share certificates to the Company's H share registrar, Tricor Investor Services Limited at Level 54, Hopewell Centre, 183 Queen's Road East, Hong Kong (for holders of H shares) for registration before 4:30 p.m. on Friday, 18 June 2021.

• 2. A shareholder entitled to attend and vote at the meeting may appoint one or more persons as his/her proxy(ies) to attend and vote on his/her behalf. A proxy need not be a shareholder of the Company but must attend the meeting in person to represent the member.

• 3. The instrument appointing a proxy must be in writing and signed by the appointing shareholder or his duly authorized attorney in writing. Where the appointing shareholder is a legal entity, such instrument must be either under its common seal or duly signed by its legal representative, director(s) or duly authorized attorney(s).

• 4. Shareholders who intend to attend the meeting by proxy should complete the proxy form. For holders of H shares, the proxy form should be returned to the Company's H Share registrar, Tricor Investor Services Limited at Level 54, Hopewell Centre, 183 Queen's Road East, Hong Kong, in person or by post as soon as possible not less than 24 hours before the time fixed for holding the meeting or any adjournment thereof. Completion and return of the proxy form will not preclude you from attending the meeting and any adjournment thereof and voting in person. In such event, the form of proxy shall be deemed to be revoked.

• 5. The Class Meeting of H Shareholders is expected to last for less than half a day. Shareholders (in person or by proxy) who attend the Class Meeting of H Shareholders should bear their own transportation and accommodation expenses. Shareholders or their proxies attending the Class Meeting of H Shareholders shall present their identification documents.

• 6. Where there are joint registered holders of any share, any one of such persons may vote at the meeting, either in person or by proxy, in respect of such share as if he were solely entitled thereto; but if more than one of such joint holders be present at the meeting, the vote of the senior holder who tenders a vote, whether in person or by proxy, shall be accepted to the exclusion of the votes of the other joint holders and, for this purpose, seniority shall be determined by the order in which the names stand in the register of members of the Company in respect of the joint holding.

• 7. References to times and dates in this notice are to Hong Kong local times and dates.

• 8. Further details of the resolutions will be included in the circular to be despatched to shareholders by the Company.

• 9. Further details of the resolution are set out in the announcement of the Company dated 30 March 2021 in relation to the proposed amendments to the Articles of Association of the Company, the Rules of Procedures of the General Meetings, the Board of Directors and the Board of Supervisors.

• 10. This notice of Class Meeting of H Shareholders is despatched to the holders of H shares only.

  As at the date of this announcement, the board of directors of the Company comprises

Mr. Xiong Jun, Dr. Li Ning, Dr. Feng Hui, Mr. Zhang Zhuobing and Dr. Yao Sheng as executive Directors; Dr. Wu Hai, Mr. Tang Yi, Mr. Li Cong, Mr. Yi Qingqing and Mr. Lin Lijun as non-executive Directors; and Dr. Chen Lieping, Mr. Qian Zhi, Mr. Zhang Chun, Dr. Jiang Hualiang and Dr. Roy Steven Herbst as independent non-executive Directors.

*

For identification purpose only.