CanSino Biologics : Supplemental Form of Proxy for use at the 2020 Annual General Meeting to be held on Friday, May 28, 2021

CanSino Biologics Inc. 康希諾生物股份公司

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

(Stock code: 6185)

Supplemental Form of Proxy for use at the 2020

Annual General Meeting to be held on Friday, May 28, 2021

I/We(Note 1)								(name)
of						(address)
being the registered holder(s) of		H shares(Note 2) of CanSino Biologics Inc.
(the "Company") HEREBY APPOINT(Note 3) THE CHAIRMAN OF THE MEETING or
									(name)
of						(address),

as my/our proxy(ies) to attend the 2020 Annual General Meeting (and at any adjournment thereof) of the Company to be held on Friday, May 28, 2021 at 1:30 p.m. at Conference Room, Level 11, CITIC Securities Tower, No. 48 Liangmaqiao Road, Chaoyang District, Beijing, PRC for the purposes of considering and, if thought fit, passing the resolution set out in the notice and supplemental notice convening the said meeting and at such meeting (and at any adjournment thereof) to vote for me/us in my/our name(s) in respect of the resolution as indicated below:

ORDINARY RESOLUTION

FOR(Note 4)

AGAINST(Note 4)

ABSTAIN(Note 4)

11 To consider and approve the proposed change in use of the net proceeds received from the Company's A share offering in August 2020.

Dated this

day of

2021

Signature(Note 5):

Notes:

1. Full name(s) and address(es) to be inserted in BLOCK CAPITALS.
2. Please insert the number of shares of the Company registered in your name(s). If no number is inserted, this supplemental form of proxy will be deemed to relate to all the shares of the Company registered in your name(s).
3. If any proxy other than the Chairman of the meeting is preferred, please strike out the words "THE CHAIRMAN OF THE MEETING" and insert the name and address of the proxy desired in the space provided. Any shareholder of the Company entitled to attend and vote at the meeting is entitled to appoint one or more (if he/she/it holds more than one share) proxies to attend and vote instead of him/her/it. If more than one proxy is appointed, the appointment shall specify the number of shares in respect of which each such proxy (or proxies) is so appointed. A proxy need not be a shareholder of the Company. IF NO NAME IS INSERTED, THE CHAIRMAN OF THE MEETING WILL ACT AS YOUR PROXY. ANY
   ALTERATION MADE TO THIS SUPPLEMENTAL FORM OF PROXY MUST BE INITIALLED BY THE PERSON WHO SIGNS IT.
4. IMPORTANT: IF YOU WISH TO VOTE FOR A RESOLUTION, TICK () IN THE RELEVANT BOX BELOW THE BOX MARKED "FOR". IF YOU WISH TO VOTE AGAINST A RESOLUTION, TICK () IN THE RELEVANT BOX BELOW THE BOX MARKED "AGAINST". IF YOU WISH TO ABSTAIN FROM A RESOLUTION, TICK () IN THE RELEVANT BOX BELOW THE BOX MARKED "ABSTAIN". Failure to tick a box will entitle your proxy (or proxies) to cast your vote at his/her discretion. Your proxy (or proxies) will also be entitled to vote at his/her discretion on any resolution properly put to the meeting other than those referred to in the notice and supplemental notice convening the meeting.
5. This supplemental form of proxy must be signed by you or your attorney duly authorized in writing or, in the case of a corporation, must be either executed under its common seal or under the hand of an officer or attorney or other person duly authorized.
6. Every shareholder of the Company present in person or by proxy or, being a corporation, is present by its duly authorized representative, shall have one vote for every fully paid share of which he/she/it is the holder.
7. In the case of joint holders, the vote of the senior who tenders a vote, whether in person or by proxy, will be accepted to the exclusion of votes of the other joint holder(s) and for this purpose seniority will be determined by the order in which the names stand in the register of members of the Company.
8. To be valid, this supplemental form of proxy together with the power of attorney (if any) or other authority (if any) under which it is signed or a notarially certified copy thereof, must be delivered to the Company's H share registrar, Computershare Hong Kong Investor Services Limited, at 17M Floor, Hopewell Centre, 183 Queen's Road East, Wanchai, Hong Kong (for holders of H shares), not less than 24 hours before the time fixed for holding the annual general meeting (i.e. not later than 1:30 p.m. on Thursday, May 27, 2021) or any adjournment thereof.
9. The proxy need not be a shareholder of the Company but must attend the meeting in person to represent you.
10. Completion and delivery of the supplemental form of proxy will not preclude you from attending and voting at the meeting if you so wish.
11. Reference to dates and time in this supplemental form of proxy are to Hong Kong dates and time.

PERSONAL INFORMATION COLLECTION STATEMENT

Your supply of your and your proxy's (or proxies') name(s) and address(es) is on a voluntary basis for the purpose of processing your request for the appointment of a proxy (or proxies) and your voting instructions for the annual general meeting of the Company (the "Purposes"). We may transfer your and your proxy's (or proxies') name(s) and address(es) to our agent, contractor, or third party service provider who provides administrative, computer and other services to us for use in connection with the Purposes and to such parties who are authorized by law to request the information or are otherwise relevant for the Purposes and need to receive the information. Your and your proxy's (or proxies') name(s) and address(es) will be retained for such period as may be necessary to fulfil the Purposes. Request for access to and/or correction of the relevant personal data can be made in accordance with the provisions of the Personal Data (Privacy) Ordinance and any such request should be in writing by mail to the Personal Data Privacy Officer, Computershare Hong Kong Investor Services Limited, 17M Floor, Hopewell Centre, 183 Queen's Road East, Wanchai, Hong Kong.