XtalPi Holdings Limited — Proxy Solicitation & Information Statement 2024

Oct 24, 2024

QuantumPharm Inc.

(Incorporated in the Cayman Islands with limited liability)

(Stock Code: 2228)

FORM OF PROXY FOR THE EXTRAORDINARY GENERAL MEETING TO BE HELD ON FRIDAY, 8 NOVEMBER 2024 OR ANY ADJOURNMENT THEREOF

I/We [(Note][1)]

of

being the registered holder(s) of [(Note][2)] shares

of US$0.00001 each in the issued share capital of QuantumPharm Inc. (the “ Company ”), HEREBY APPOINT the chairman of the meeting or [(Note][3)] of (email address)

as my/our proxy to attend and vote for me/us and on my/our behalf at the extraordinary general meeting (or at any adjournment thereof) of the Company (“ EGM ”) to be held at Multi-functional Meeting Room, 3/F, Second Phase of the International Biomedical Industrial Park, No. 2 Hongliu Road, Futian District, Shenzhen, PRC on Friday, 8 November 2024 at 10:00 a.m. for the purpose of considering and, if thought fit, passing the following resolution as set out in the notice convening the EGM and at the EGM (or at any adjournment thereof) to vote for me/us in my/our name(s) in respect of the said resolution as hereunder indicated or, if no such indication is given, as my/our proxy thinks fit.

SPECIAL RESOLUTION For [(Note][4)] Against [(Note][4)] 1. THAT : (a) subject to and conditional upon the necessary registration and/or filing procedures with the Registrar of Companies in the Cayman Islands being completed, the English name of the Company be changed from “QuantumPharm Inc.” to “XtalPi Holdings Limited” and the dual foreign name of the Company in Chinese “晶泰控 股有限公司” be adopted (the “ Proposed Change of Company Name ”); and (b) any one of the directors or any one company secretary of the Company be and is hereby authorised to do all such acts and things and execute all documents or make such arrangements including under seal where appropriate, as he/she may, in his/her absolute discretion, consider necessary, desirable or expedient to effect the Proposed Change of Company Name and to attend to any necessary registration and/or filing for and on behalf of the Company.

Signature [(Note][5)] :

Date:

Notes:

1. Full name(s) and address(es) to be inserted in BLOCK CAPITALS . The name of all joint registered holders should be stated. A member entitled to attend and vote at the EGM is entitled to appoint a proxy or more than one proxy (for member holding two or more shares) to attend and, on a poll, vote in his/her stead. A proxy need not be a member of the Company.

2. Please insert the number of shares registered in your name(s) to which the proxy relates. If no number is inserted, this 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 EGM is preferred, strike out the words “the chairman of the EGM or” and insert the name and address of the proxy desired in the space provided. The proxy need not be a member of the Company but must attend the EGM in person to represent you. ANY ALTERATION MADE TO THIS FORM OF PROXY MUST BE INITIALLED BY THE PERSON WHO SIGNS IT .

4. IMPORTANT: IF YOU WISH TO VOTE FOR A RESOLUTION, PUT A TICK IN THE BOX MARKED “FOR”. IF YOU WISH TO VOTE AGAINST A RESOLUTION, PUT A TICK IN THE BOX MARKED “AGAINST” . Failure to do so will entitle your proxy to vote or abstain at he/she thinks fit. 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.

5. This form of proxy must be signed by you or your attorney duly authorised in writing or, in the case of a corporation, must be either under its common seal or under the hand of an officer duly authorised.

6. In the case of joint holders the vote of a senior who tenders a vote, whether in person or by proxy, will be accepted to the exclusion of the 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.

7. In order to be valid, the form of proxy together with the power of attorney or other authority, if any, under which it is signed or a certified copy of that power of attorney or authority, must be deposited at the Company’s share registrar in Hong Kong, Tricor Investor Services Limited, at 17/F., Far East Finance Centre, 16 Harcourt Road, Hong Kong no less than 48 hours before the time appointed for the EGM (i.e. not later than 10:00 a.m. on 6 November 2024 (Hong Kong time)) or any adjournment thereof.

8. Completion and delivery of the form of proxy will not preclude you from attending and voting at the EGM if you so wish.

PERSONAL INFORMATION COLLECTION STATEMENT

Yourproxysupply(or proxies)of yourandandyouryourvotingproxy’sinstructions(or proxies’)forname(s)the EGMandofaddress(es)the Companyis on(thea voluntary“ Purposes basis”). Wefor themaypurposetransferofyourprocessingand youryourproxy’srequest(orforproxies’)the appointmentname(s) ofanda 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 made in writing to Tricor Investor Services Limited at 17/F., Far East Finance Centre, 16 Harcourt Road, Hong Kong for the attention of Privacy Compliance Officer.