Ab&B Bio-Tech CO., LTD. JS — Proxy Solicitation & Information Statement 2026

May 8, 2026

中華民國

中慧生物

Ab&B Bio-Tech

Ab&B Bio-Tech CO., LTD. JS

江蘇中慧元通生物科技股份有限公司

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

(Stock Code: 2627)

FORM OF PROXY FOR THE FIRST EXTRAORDINARY GENERAL MEETING OF 2026 TO BE HELD ON WEDNESDAY, MAY 27, 2026 AND ANY ADJOURNMENT THEREOF

I/We $^{(note1)}$

of $^{(note1)}$

being the registered holder(s) of $(^{note2})$ H shares/unlisted shares $(^{Note3})$ of RMB1.00 each in the share capital of Ab&B Bio-Tech CO., LTD. JS (the "Company"), hereby appoint the Chairman of the meeting $(^{note4})$ or $(^{note5})$ (name) of $(^{note6})$ (address) to act as my/our proxy to attend and act for me/us at the first extraordinary general meeting of 2026 of the Company (the "EGM") to be held at No. 32, Xinglin Road, Medical High-tech Zone, Taizhou, Jiangsu, PRC, at 10 a.m. on Wednesday, May 27, 2026 and any adjourned meeting thereof, for the purposes of considering and, if thought fit, passing the resolutions $(^{note7})$ as set out in the notice convening the EGM and to vote for me/us and in my/our name(s) in respect of the resolutions as indicated below at the EGM (and at any adjourned meeting thereof). Unless otherwise defined, capitalized terms used herein shall have the same meanings as those defined in the circular of the Company dated May 7, 2026 (the "Circular").

SPECIAL RESOLUTIONS(Note 5)		FOR(Note 6)	AGAINST(Note 6)	ABSTAIN(Note 6)
1.	To consider and approve the abolition of the supervisory committee.
2.	Subject to the passing of the abolition of the supervisory committee, to consider and approve the Proposed Amendments to the Articles of Association.
ORDINARY RESOLUTIONS(Note 5)		FOR(Note 6)	AGAINST(Note 6)	ABSTAIN(Note 6)
3.	Subject to the passing of the Proposed Amendments to the Articles of Association, to consider and approve the amendment of certain internal corporate governance policies.
4.	Subject to the passing of the Proposed Amendments to the Articles of Association, to consider and approve the appointment of Ms. LUI Mei Ka as independent non-executive Director.
5.	To consider and approve the appointment of Prism as auditors of the Company and to authorize the Board to fix their remuneration.

Date:

Signature(s) (Note 7):

Notes:

1. Full name(s) (in Chinese and English, as registered in the register of members of H shares/unlisted shares) and registered address(es) to be inserted in BLOCK CAPITALS.
2. Please insert the number of H shares/unlisted shares of the Company registered under 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 H shares/unlisted shares of the Company registered in your name(s).
3. Please strike out the type of shares (unlisted shares or H shares) to which this form of proxy does not relate.
4. If any proxy other than the chairman of the EGM is appointed, please strike out the words "the Chairman of the meeting or" and insert the name and address of the proxy desired in the space provided. A shareholder may appoint one or more proxies to attend and vote on his behalf. If a shareholder appoints more than one proxy, his proxies may only exercise voting rights at a poll. ANY ALTERATION MADE TO THIS FORM OF PROXY MUST BE INITIALLED BY THE PERSON WHO SIGNS IT.

5. The full text of the resolutions is set out in the Circular, together with which this form of proxy will be published on the websites of The Stock Exchange of Hong Kong Limited (www.hkexnews.hk) and the Company (www.abbbio.com) and sent to shareholders of the Company if requested. Any shareholder who wishes to appoint a proxy shall refer to the Circular.

6. IMPORTANT: IF YOU WISH TO VOTE FOR THE RESOLUTION, PLEASE TICK THE BOX MARKED "FOR" BESIDE THE RESOLUTION. IF YOU WISH TO VOTE AGAINST THE RESOLUTION, PLEASE TICK THE BOX MARKED "AGAINST" BESIDE THE RESOLUTION. IF YOU WISH TO ABSTAIN FROM VOTING ON THE RESOLUTION, PLEASE TICK THE BOX MARKED "ABSTAIN" BESIDE THE RESOLUTION. IN COUNTING THE VOTING RESULTS FOR A RESOLUTION, ABSTAINED VOTES WILL BE REGARDED AS VOTES WITH VOTING RIGHTS. If no direction is given, your proxy may vote or abstain at his/her discretion. Your proxy will also be entitled to vote at his/her discretion on any resolution properly put to the EGM other than those referred to in the notice convening the EGM.

7. This form of proxy must be in writing under the hand of a shareholder or his attorney duly authorized. If the shareholder is a corporation, that instrument must be either under its common seal or under the hand of its director(s) or duly authorized attorney(ies). If that instrument is signed by an attorney of a shareholder, the power of attorney or other document authorizing that attorney to sign must be notarized.

8. To be valid, this form of proxy together with any power of attorney or other authorization document (if any) under which it is signed or a notarized copy of that power of attorney or authorization document must be lodged with the Company's H share registrar in Hong Kong, Tricor Investor Services Limited, at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong (for holders of H shares), no later than 24 hours before the time appointed for holding the EGM or any adjournment thereof. Completion and return of the form of proxy will not preclude you from attending and voting in person at the EGM if you so wish. In such event, your form of proxy will be deemed to have been revoked.
9. Shareholders or their proxies attending the EGM shall present their identity documents.
10. A proxy need not be a shareholder of the Company but must attend the EGM in person to represent the shareholder.
11. Where there are joint registered holders of any share, any one of such joint holders may vote, either in person or by proxy, in respect of such share as if he/she was solely entitled thereto, but if more than one of such joint holders are present at the EGM, whether in person or by proxy, the joint registered holder present whose name stands first on the register of members of the Company in respect of the shares shall alone be entitled to vote in respect thereof.
12. References to time and dates in this proxy form are to Hong Kong time and dates.

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 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 Company/Tricor Investor Services Limited at the above address.