Pharmaron Beijing Co., Ltd — AGM Information 2021

May 25, 2021

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Pharmaron Beijing Co., Ltd.[*] 康龍化成（北京）新藥技術股份有限公司

(A joint stock company incorporated in the People’s Republic of China with limited liability) (Stock Code: 3759)

CHANGE OF VENUE OF THE ANNUAL GENERAL MEETING OF 2020 AND THE FIRST H SHARES CLASS MEETING OF 2021 THAT WERE ORIGINALLY SCHEDULED TO BE HELD ON FRIDAY, MAY 28, 2021

References are made to the Circular (the “ Circular ”), the Notices of the AGM of 2020 and the First H Shares Class Meeting of 2021 (collectively the “ Notices ”), and the Forms of Proxy for the AGM of 2020 and for the First H Shares Class Meeting of 2021 (collectively the “ Forms of Proxy ”) dated April 28, 2021 of Pharmaron Beijing Co., Ltd. (the “ Company ”). Unless otherwise specified, capitalized terms used herein shall have the same meanings as those defined in the Circular, the Notices and the Forms of Proxy.

CHANGE OF VENUE OF THE AGM OF 2020 AND THE FIRST H SHARES CLASS MEETING OF 2021

As disclosed in the Circular, the Notices and the Forms of Proxy, the Annual General Meeting of 2020 (the “ AGM ”) and the First H Shares Class Meeting of 2021 (the “ H Shares Class Meeting ”) were originally scheduled to be held at 6 Tai-He Road, Economic Technological Development Area, Beijing, the PRC (the “ Original Venue ”) on Friday, May 28, 2021 at 2 p.m. The Board of Directors of the Company (the “ Board ”) announced that due to the large number of shareholders of the Company (the “ Shareholders ”) registered to attend the AGM and the H Shares Class Meeting, the Company has decided to change the venue of the AGM and the H Shares Class Meeting to Juyuan Hall, 5/F, Block A, Zhaolin Plaza, No. 19 Ronghua Middle Road, Beijing Economic and Technological Development Area, Daxing District, Beijing, the PRC to keep a required distance between the attendees and enhance their comfort in line with the requirements of Beijing for COVID-19 prevention and control.

Except the change of the Original Venue of the AGM and the H Shares Class Meeting, all information contained in the Circular, the Notices and the Forms of Proxy, including the time and date to hold the AGM and the H Shares Class Meeting, the closure of register of members, the resolutions to be proposed at the AGM and the H Shares Class Meeting, remains unchanged. The Forms of Proxy remain valid. Shareholders are not required to submit the Forms of Proxy again if they have submitted them.

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Shareholders who intend to attend the AGM and the H Shares Class Meeting in person are advised to pay attention to the change of venue abovementioned.

By order of the Board Pharmaron Beijing Co., Ltd. 康龍化成(北京)新藥技術股份有限公司 Dr. Lou Boliang* Chairman

Beijing, the PRC May 25, 2021

As at the date of this announcement, the Board of Directors comprises Dr. Lou Boliang, Mr. Lou Xiaoqiang and Ms. Zheng Bei as executive Directors; Mr. Chen Pingjin, Mr. Hu Baifeng, Mr. Li Jiaqing and Mr. Zhou Hongbin as non-executive Directors; Mr. Dai Lixin, Ms. Chen Guoqin, Mr. Tsang Kwan Hung Benson and Mr. Yu Jian as independent non-executive Directors.

• For identification purposes only

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