Quantgroup Holding Limited — Proxy Solicitation & Information Statement 2026

May 26, 2026

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this notice, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this notice.

Quantgroup Holding Limited

量化派控股有限公司

(Incorporated in the Cayman Islands with limited liability)

(Stock Code: 2685)

NOTICE OF ANNUAL GENERAL MEETING

NOTICE IS HEREBY GIVEN THAT the annual general meeting of Quantgroup Holding Limited (the "Company") will be held at Unit B12A, Hengtong Business Park, No. 10 Jiuxianqiao Road, Chaoyang District, Beijing, China on Friday, June 26, 2026 at 10:00 a.m. for the following purposes:

ORDINARY RESOLUTIONS

1. To receive and adopt the audited consolidated financial statements of the Company for the year ended December 31, 2025 and the reports of the directors and auditor thereon.

2. (a) To re-elect the following retiring directors of the Company (the "Directors"):

(i) Dr. ZHOU Hao as executive Director;
(ii) Mr. LI Yan as executive Director;
(iii) Mr. SONG Yang as executive Director;
(iv) Mr. ZHANG Yanshen as executive Director;
(v) Mr. TAN Feng as executive Director;

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(vi) Mr. ZHANG Yi as non-executive Director;
(vii) Mr. SUN Junchen as independent non-executive Director;
(viii) Mr. CAO Jie as independent non-executive Director; and
(ix) Ms. GUO Yongfang as independent non-executive Director.

(b) To authorise the board of directors (the "Board") to fix the remuneration of the Directors.

1. To re-appoint KPMG as the auditor of the Company to hold office until the conclusion of the next annual general meeting of the Company and to authorise the Board to fix its remuneration for the year ending December 31, 2026.

2. To consider and, if thought fit, pass with or without modification the following resolutions as ordinary resolutions:

(A) "That:

(i) subject to paragraph (iii) below, the exercise by the Directors during the Relevant Period (as hereinafter defined) of all the powers of the Company to allot, issue and deal with additional shares (including any sale or transfer of shares out of treasury that are held as treasury shares) of the Company and to make or grant offers, agreements and/or options (including bonds, warrants and debentures exchangeable for or convertible into shares) which may require the exercise of such powers be and is hereby generally and unconditionally approved;

(ii) the approval in paragraph (i) above shall be in addition to any other authorisation given to the Directors and shall authorise the Directors during the Relevant Period (as defined hereinafter) to make or grant offers, agreements and/or options which may require the exercise of such power after the end of the Relevant Period;

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(iii) the aggregate number of shares allotted or agreed conditionally or unconditionally to be allotted (including any sale or transfer of shares out of treasury that are held as treasury shares) by the Directors during the Relevant Period (as defined hereinafter) pursuant to paragraph (i) above, otherwise than pursuant to:

(1) any Rights Issue (as defined hereinafter);

(2) the grant or exercise of any option under any share option scheme of the Company (if applicable) or any other option, scheme or similar arrangements for the time being adopted for the grant or issue to the Directors, officers and/or employees of the Company and/or any of its subsidiaries and/or other eligible participants specified thereunder of options to subscribe for shares or rights to acquire shares;

(3) any scrip dividend or similar arrangement providing for the allotment and issue of shares in lieu of the whole or part of a dividend on shares in accordance with the articles of association of the Company; or

(4) any issue of shares upon the exercise of rights of subscription or conversion under the terms of any existing convertible notes issued by the Company or any existing securities of the Company which carry rights to subscribe for or are convertible into shares,

shall not exceed the aggregate of:

(a) 20% of the number of issued shares of the Company (excluding treasury shares) as at the date of passing this resolution; and

(b) (if the Board is so authorised by resolution numbered 4(C)) the aggregate number of shares of the Company repurchased by the Company subsequent to the passing of resolution numbered 4(B) (up to a maximum equivalent to 10% of the number of issued shares of the Company (excluding treasury shares) as at the date of passing resolution numbered 4(B)),

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and the approval shall be limited accordingly; and

(iv) for the purpose of this resolution:--

(a) “Relevant Period” means the period from the passing of this resolution until whichever is the earliest of:--

(1) the conclusion of the next annual general meeting of the Company;

(2) the expiry of the period within which the next annual general meeting of the Company is required by any applicable laws or the articles of association of the Company to be held; or

(3) the passing of an ordinary resolution by the shareholders of the Company in general meeting revoking or varying the authority given to the Directors by this resolution; and

(b) “Rights Issue” means an offer of shares of the Company or an issue of warrants, options or other securities giving rights to subscribe for shares of the Company, open for a period fixed by the Directors to holders of shares of the Company on the register of members on a fixed record date in proportion to their then holdings of such shares of the Company (subject to such exclusions or other arrangements as the Directors may deem necessary or expedient in relation to fractional entitlements or, having regard to any restrictions or obligations under the laws of, or the requirements of, or the expense or delay which may be involved in determining the exercise or extent of any restrictions or obligations under the laws of, or the requirements of, any jurisdiction applicable to the Company, any recognised regulatory body or any stock exchange applicable to the Company).

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(B) “That:

(i) subject to paragraph (ii) of this resolution, the exercise by the Directors during the Relevant Period (as defined hereinafter) of all the powers of the Company to repurchase shares of the Company on The Stock Exchange of Hong Kong Limited (the “Stock Exchange”) or on any other stock exchange on which the shares of the Company may be listed and which is recognised for this purpose by the Securities and Futures Commission and the Stock Exchange under the Code on Share Buy-backs and, subject to and in accordance with all applicable laws and the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules”), be and is hereby generally and unconditionally approved;

(ii) the aggregate number of the shares to be repurchased pursuant to the approval in paragraph (i) of this resolution shall not exceed 10% of the number of issued shares (excluding treasury shares) of the Company as at the date of passing of this resolution, and the said approval shall be limited accordingly;

(iii) subject to the passing of each of the paragraphs (i) and (ii) of this resolution, any prior approvals of the kind referred to in paragraphs (i) and (ii) of this resolution which had been granted to the Directors and which are still in effect be and are hereby revoked; and

(iv) for the purpose of this resolution:

“Relevant Period” means the period from the passing of this resolution until whichever is the earliest of:

(a) the conclusion of the next annual general meeting of the Company;

(b) the expiry of the period within which the next annual general meeting of the Company is required by any applicable laws or the articles of association of the Company to be held; or

(c) the passing of an ordinary resolution by the shareholders of the Company in general meeting revoking or varying the authority given to the Directors by this resolution.”

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(C) “That conditional upon the resolutions numbered 4(A) and 4(B) set out in this notice being passed, the general mandate granted to the Directors to exercise the powers of the Company to allot, issue and deal with new shares (including any sale or transfer of shares out of treasury that are held as treasury shares) of the Company and to make or grant offers, agreements and options which might require the exercise of such powers pursuant to the resolution numbered 4(A) set out in this notice be and is hereby extended by the addition to the number of the issued shares of the Company which may be allotted or agreed conditional or unconditionally to be allotted (including any sale or transfer of shares out of treasury that are held as treasury shares) by the Directors pursuant to such general mandate of an amount representing the number of the issued shares of the Company repurchased by the Company under the authority granted pursuant to resolution numbered 4(B) set out in this notice, provided that such extended amount shall represent up to 10% of the number of issued shares of the Company (excluding treasury shares) as at the date of passing of the said resolutions.”

By order of the Board
Quantgroup Holding Limited
Dr. Zhou Hao
Chairman and Executive Director

Hong Kong, May 26, 2026

Registered office:
4th Floor Harbour Place
103 South Church Street
PO Box 10240
Grand Cayman KY1-1002
Cayman Islands

Headquarters and principal place of business in the PRC:
Office B711, 7th Floor, No. 19
Zhongguancun Street
Haidian District
Beijing, China

Principal place of business in Hong Kong:
31/F., Tower Two
Times Square
1 Matheson Street
Causeway Bay
Hong Kong

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Notes:

(i) Resolution numbered 4(C) will be proposed to the shareholders for approval provided that resolutions numbered 4(A) and 4(B) are passed by the shareholders of the Company.

(ii) A shareholder entitled to attend and vote at the above meeting is entitled to appoint one or more proxies to attend, speak and vote in his/her stead. The proxy does not need to be a shareholder of the Company.

(iii) Where there are joint registered holders of any shares, any one of such persons may vote at the above meeting (or at any adjournment of it), either personally or by proxy, in respect of such shares as if he/she were solely entitled thereto but the vote of the senior holder who tenders a vote, whether in person or by proxy, will be accepted to the exclusion of the vote(s) of the other joint holders and, for this purpose, seniority shall be determined by the order in which the names stand in the register of members of the Company in respect of the relevant joint holding.

(iv) In order to be valid, the completed form of proxy, must be deposited at the Hong Kong share registrar of the Company, Computershare Hong Kong Investor Services Limited, at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wanchai, Hong Kong 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 (such certification to be made by either a notary public or a solicitor qualified to practice in Hong Kong), at least 48 hours before the time appointed for holding the above meeting or any adjournment thereof (as the case may be). The completion and return of the form of proxy shall not preclude shareholders of the Company from attending and voting in person at the above meeting (or any adjourned meeting thereof) if they so wish.

(v) The register of members of the Company will be closed from Tuesday, June 23, 2026 to Friday, June 26, 2026, both days inclusive, in order to determine the eligibility of shareholders to attend the above meeting, during which period no share transfers will be registered. Shareholders whose names appear on the register of members on Friday, June 26, 2026 (i.e. the record date) will be entitled to attend and vote at the annual general meeting. To be eligible to attend the above meeting, all properly completed transfer forms accompanied by the relevant share certificates must be lodged for registration with the Hong Kong share registrar of the Company, Computershare Hong Kong Investor Services Limited, at Shops 1712-1716, 17th Floor, Hopewell Centre, 183 Queen’s Road East, Wanchai, Hong Kong not later than 4:30 p.m. on Monday, June 22, 2026.

(vi) In respect of the resolution numbered 4(A) above, the Directors wish to state that they have no immediate plans to issue any new shares of the Company referred therein. Approval is being sought from the shareholders of the Company as a general mandate for the purposes of the Listing Rules.

(vii) In respect of resolution numbered 4(B) above, the Directors wish to state that they will exercise the powers conferred by the general mandate to repurchase shares of the Company in circumstances which they deem appropriate and for the benefits of shareholders of the Company. The explanatory statement containing the information necessary to enable shareholders to make an informed decision on whether to vote for or against the resolution to approve the repurchase by the Company of its own shares, as required by the Listing Rules, is set out in Appendix II to the circular dated May 26, 2026.

As at the date of this notice, the Board comprises: (i) Dr. Zhou Hao, Mr. Li Yan, Mr. Song Yang, Mr. Zhang Yanshen and Mr. Tan Feng as executive Directors; (ii) Mr. Zhang Yi as non-executive Director; and (iii) Mr. Sun Junchen, Mr. Cao Jie and Ms. Guo Yongfang as independent non-executive Directors.