Shanghai Junshi Biosciences : CHANGE OF DATE OF THE 2020 FIRST EXTRAORDINARY GENERAL MEETING AND CHANGE OF BOOK CLOSURE PERIOD FOR H SHARES

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SHANGHAI JUNSHI BIOSCIENCES CO., LTD.*

上海君實生物醫藥科技股份有限公司

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

(Stock code: 1877)

CHANGE OF DATE OF THE 2020 FIRST

EXTRAORDINARY GENERAL MEETING

AND

CHANGE OF BOOK CLOSURE PERIOD FOR H SHARES

Reference is made to the notice of the 2020 first extraordinary general meeting (the "EGM") of Shanghai Junshi Biosciences Co., Ltd.* (上海君實生物醫藥科技股份有限公司) (the "Company") dated 21 November 2019 (the "Notice of EGM") and the circular dated 3 December 2019

which contained further information regarding the resolutions to be proposed at the EGM (the "Circular"). The EGM was originally scheduled to be held at Jumeirah Himalayas Hotel Shanghai, No. 1108 Mei Hua Road, Pudong New District, Shanghai, the People's Republic of China on 6 January 2020 (Monday) at 10:30 a.m. Unless otherwise indicated, capitalized terms used in this announcement shall have the same meanings as those defined in the Circular.

CHANGE OF DATE OF EGM

The Company would like to propose an additional resolution for consideration and approval by the Shareholders at the EGM. In order to provide sufficient time for the Shareholders to consider the new resolution to be proposed, the EGM will be re-scheduled to 3 February 2020 (Monday) at 10:30 a.m. at Jumeirah Himalayas Hotel Shanghai, No. 1108 Mei Hua Road, Pudong New District, Shanghai, the People's Republic of China (the "Postponed EGM").

Supplemental notice of the Postponed EGM (together with corresponding proxy form and reply slip) and the supplemental circular with details on the additional resolution will be published and despatched to the Shareholders in due course.

CHANGE OF BOOK CLOSURE PERIODS FOR H SHARES

As disclosed in the Circular, the register of members of H shares of the Company has been closed from 7 December 2019 (Saturday) in order to determine the entitlement of the H Shareholders to attend and vote at the EGM.

Due to the change in the EGM date, the Company will arrange for the re-open of the register of members of H shares on 16 December 2019 (Monday) and the same will be closed from 4:30 p.m. on 3 January 2020 (Friday), being the last share registration date. For the purpose of ascertaining H Shareholders who will be entitled to attend and vote at the Postponed EGM, the new book closure period and the record date will be revised as follows:

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	Original	Revised
Latest time to lodge transfers	4:30 p.m. on 6 December 2019	4:30 p.m. on 3 January 2020
in order to be entitled	(Friday)	(Friday)
to attend and vote at the
(Postponed) EGM
Closure dates of the register of	7 December 2019 (Saturday) to	4 January 2020 (Saturday) to
members of H Shares	6 January 2020 (Monday)	3 February 2020 (Monday)
	(both days inclusive)	(both days inclusive)
Record date	6 January 2020 (Monday)	3 February 2020 (Monday)
Latest time for lodging reply	17 December 2019 (Tuesday)	14 January 2020 (Tuesday)
slip for the (Postponed)
EGM
Latest time for lodging proxy	10:30 a.m. on 5 January 2020	10:30 a.m. on 2 February 2020
form for the (Postponed)	(Sunday)	(Sunday)
EGM
EGM date	10:30 a.m. on 6 January 2020	10:30 a.m. on 3 February 2020
	(Monday)	(Monday)

During the period from 4 January 2020 (Saturday) to 3 February 2020 (Monday), both days inclusive, no transfer of H Shares will be registered, in order to determine the entitlements of the H Shareholders to attend and vote at the Postponed EGM.

In order to be eligible to attend and vote at the Postponed EGM, all transfers of H Shares accompanied by the relevant share certificates and transfer forms must be lodged with 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) before 4:30 p.m. on 3 January 2020 (Friday), being the last share registration date.

For the avoidance of doubt, all other dates and times set out in the Notice of EGM and the Circular shall remain unchanged.

References to times and dates in this announcement are to Hong Kong local times and dates.

By order of the Board of

Shanghai Junshi Biosciences Co., Ltd.*

Mr. Xiong Jun

Chairman

Shanghai, the PRC, 13 December 2019

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, Dr. Wu Hai and Dr. Yao Sheng as executive Directors; Mr. Tang Yi, Mr. Li Cong, Mr. Yi Qingqing and Mr. Lin Lijun as non-executive Directors; and Dr. Chen Lieping, Dr. He Jia, Mr. Chen Xinjun, Mr. Qian Zhi and Dr. Roy Steven Herbst as independent non-executive Directors.

• For identification purpose only

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