Pharmaron Beijing Co., Ltd — Proxy Solicitation & Information Statement 2022

May 6, 2022

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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)

Reply Slip for the Second H Shares Class Meeting of 2022

To: Pharmaron Beijing Co., Ltd.* (康龍化成(北京)新藥技術股份有限公司) (the “Company”)

I/We [(Note][1)] (name)

of (Note 1) (address as shown in the register of members) and (telephone number [(Note][2)] ) being the registered holder(s) of (Note 3) H Shares of RMB1.00 each in

the share capital of the Company hereby inform the Company that I/we intend to attend, in person or by proxy, the Second H Shares Class Meeting of 2022 (the “ H Shares Class Meeting ”) of the Company to be held at Juyuan Hall, 5/F, Block A, Zhaolin Plaza, No. 19 Ronghua Middle Road, Beijing Economic and Technological Development Area, Daxing District, Beijing, the PRC after the conclusion of the Annual General Meeting of 2021 on Tuesday, May 31, 2022 at 2 p.m.

Date: Signature of Shareholder(s) [(Note][4)] :

Notes:

1. Please insert the full name(s) and address(es) as registered in the register of members of the Company in BLOCK LETTERS .

2. For verification purpose, please insert your telephone number via which you can be contacted.

3. Please insert the number of shares of the Company registered in your name(s).

4. If you intend to attend the H Shares Class Meeting in person or by proxy, this completed and signed reply slip should be delivered by hand or by post to the Company’s H Shares Registrar in Hong Kong, Computershare Hong Kong Investor Services Limited, at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wanchai, Hong Kong no later than Wednesday, May 25, 2022. In order to be qualified to attend and vote at the H Shares Class Meeting, all transfer documents accompanied by the relevant share certificate(s) must be delivered to the Company’s H Shares Registrar in Hong Kong, Computershare Hong Kong Investor Services Limited, at Shops 1712-1716, 17th Floor, Hopewell Centre, 183 Queen’s Road East, Wanchai, Hong Kong for registration no later than 4:30 p.m. on Wednesday, May 25, 2022.

* For identification purposes only