Uni-Bio Science Group Limited — Proxy Solicitation & Information Statement 2026

Apr 27, 2026

聯康集團

Uni-Bio Science

UNI-BIO SCIENCE GROUP LIMITED

聯康生物科技集團有限公司*

(Incorporated in the Cayman Islands with limited liability)

(Stock Code: 0690)

FORM OF PROXY

Form of proxy for use by shareholders at the extraordinary general meeting (“EGM”) of Uni-Bio Science Group Limited to be held at Unit 502, 5/F., No. 20 Science Park East Avenue, Hong Kong Science Park, Shatin, New Territories, Hong Kong at 11:00 a.m. on Tuesday, 26 May 2026 or any adjournment thereof.

I/We $^{(note a)}$

of

being the registered holder(s) of $(note b)$ shares in UNI-BIO SCIENCE GROUP LIMITED (聯康生物科技集團有限公司*) (“Company”), hereby appoint the chairman of the EGM or

of

to act as my/our proxy $^{(note c)}$ at the EGM to be held at Unit 502, 5/F., No. 20 Science Park East Avenue, Hong Kong Science Park, Shatin, New Territories, Hong Kong at 11:00 a.m. on Tuesday, 26 May 2026 and at any adjournment thereof and to vote on my/our behalf as directed below. Please make a mark in the appropriate boxes to indicate how you wish your vote(s) to be cast on a poll $^{(note d)}$.

ORDINARY RESOLUTIONS#		FOR	AGAINST
1	To adopt the New Share Option Scheme
2.	To terminate the Existing Share Option Scheme
3	To approve the Service Provider Sublimit as stated in the New Share Option Scheme

• The full text of the resolutions is set out in the notice of the EGM dated 28 April 2026.

Date:

Shareholder's signature x $^{(notes e, f, g, h and i)}$

Notes:

a Full name(s) and address are to be inserted in BLOCK CAPITALS. The names of all joint registered holders should be stated.
b Please insert the number of shares registered in your name(s) to which this form of proxy relates. If no number is inserted, this form of proxy will be deemed to relate to all the shares in the capital of the Company registered in your name(s).
c A proxy need not be a member of the Company. If you wish to appoint some person other than the chairman of the EGM as your proxy, please delete the words "the chairman of the EGM or" and insert the name and address of the person appointed proxy in the space provided.
d If you wish to vote for any of the resolutions set out above, please tick (“✓”) the boxes marked “For”. If you wish to vote against any resolutions, please tick (“✓”) the boxes marked “Against”. If the form returned is duly signed but without specific direction on any of the proposed resolutions, the proxy will vote or abstain at his/her discretion in respect of all resolutions; or if in respect of a particular proposed resolution there is no specific direction, the proxy will, in relation to that particular proposed resolution, vote or abstain at his/her discretion. A proxy will also be entitled to vote at his/her discretion on any resolution properly put to the EGM other than those set out in the notice convening the EGM.
e In the case of a joint holding, this form of proxy may be signed by any joint holder, but if more than one joint holder is present at the EGM, whether in person or by proxy, that one of the joint holders whose name stands first on the register of members in respect of the relevant joint holding shall alone be entitled to vote in respect thereof.
f The form of proxy must be signed by a shareholder, or his attorney duly authorised in writing, including electronic or otherwise, as the Board may determine and in the absence of such determination, shall be in writing, which may include electronic writing or if the shareholder is a corporation, either under its common seal or signed by an officer or attorney so authorised.
g To be valid, this form of proxy together with any power of attorney or other authority (if any) under which it is signed or a certified copy of such power or authority must be deposited at the offices of the Company's Hong Kong branch share registrar and transfer office, Tricor Investor Services Limited, at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong by 11:00 a.m. Friday, 22 May 2026 or not later than 48 hours before the time of the EGM or any adjourned EGM.
h Any alteration made to this form should be initialed by the person who signs the form.
i Completion and return of this form of proxy will not preclude you from attending and voting at the EGM or any adjournment thereof if you so wish. In such event, this form of proxy will be deemed to be revoked.
j The resolutions set out above will be put to vote at the EGM by way of poll.

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 EGM ("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 and to such parties who are authorised 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. You/your proxy (or proxies) has/have the right to request access to and/or correction of the relevant personal data in accordance with the provisions of the Personal Data (Privacy) Ordinance and any such request should be in writing by mail to Tricor Investor Services Limited at the above address.

• For identification purposes only