Standard Development Group Limited — Proxy Solicitation & Information Statement 2025

Sep 5, 2025

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.

Standard Development Group Limited

標準發展集團有限公司

(Incorporated in the Cayman Islands with limited liability)

(Stock Code: 1867)

NOTICE OF ANNUAL GENERAL MEETING

NOTICE IS HEREBY GIVEN that the annual general meeting (the "Meeting") of Standard Development Group Limited (the "Company") will be held at 21/F, Grand Millennium Plaza, 181 Queen's Road Central, Hong Kong on Tuesday, 30 September 2025 at 10:00 a.m., to consider and, if thought fit, to pass with or without amendments, the following resolutions:

ORDINARY RESOLUTIONS

1. To receive, consider and adopt the audited financial statements of the Company and its subsidiaries and the reports of the directors of the Company (the "Directors") and the auditors of the Company for the year ended 31 March 2025;

2. To re-appoint Asian Alliance (HK) CPA Limited as auditors of the Company and to authorise the board of Directors to fix their remuneration;

3. (a) To re-elect Mr. Liu Zhancheng as executive Director;

(b) To re-elect Mr. Xu Jing as executive Director;

(c) To re-elect Dr. Su Lixin as an independent non-executive Director;

(d) To appoint Mr. Zhao Changsheng as an independent non-executive Director; and

(e) To appoint Mr. Tsui Siu Hung Raymond as an independent non-executive Director.

---

1. To authorise the board of Directors to fix the remuneration of the Directors;

2. "THAT:

(a) Subject to paragraph (c) of this resolution, and pursuant to the Rules Governing the Listing of Securities (the "Listing Rules") on The Stock Exchange of Hong Kong Limited (the "Stock Exchange"), 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 (the "Shares") of HK$0.01 each in the share capital of the Company or securities convertible into such Shares or options, warrants, or similar right to subscribe for any Shares or convertible securities of the Company and to make or grant offers, agreements and options (including bonds, warrants and debentures convertible into Shares) which would or might require the exercise of such power be and is hereby generally and unconditionally approved;

(b) the approval in paragraph (a) of this resolution shall authorise the Directors during the Relevant Period to make or grant offers, agreements and options (including bonds, warrants and debentures convertible into Shares) which would or might require the exercise of such powers (including but not limited to the power to allot, issue and deal with additional Shares) during or after the end of the Relevant Period;

(c) the total number of Shares to be allotted or agreed conditionally or unconditionally to be allotted and issued (whether pursuant to an option or otherwise) by the Directors pursuant to the approval in paragraphs (a) and (b) of this resolution, otherwise than pursuant to (i) a Rights Issue (as hereinafter defined); (ii) the exercise of any options granted under any share option scheme adopted by the Company or similar arrangement for the time being adopted for the grant or issue to officers and/or employees of the Company and/or any of its subsidiaries and/or any eligible persons thereunder of shares or rights to subscribe for shares in the capital of the Company; (iii) any scrip dividend scheme or similar arrangement providing for the allotment of shares in the Company in lieu of the whole or part a dividend pursuant to the articles of association of the Company (the "Articles of Association") from time to time; or (iv) an issue of shares upon the exercise of rights of subscription or conversion under the terms of any warrants of the Company or any securities which are convertible into shares of the Company, shall not exceed 20% of the total number of issued Shares (excluding treasury shares, if any) as at the time of passing this resolution, and the said approval shall be limited accordingly; and

— 2 —

---

(d) for the purpose of this Resolution, “Relevant Period” means the period from the passing of this resolution until whichever is the earliest of:

(i) the conclusion of the next annual general meeting of the Company; or

(ii) the expiration of the period within which the next annual general meeting of the Company is required by the Articles of Association or any applicable laws of the Cayman Islands to be held; or

(iii) the date on which the authority given under this resolution is revoked or varied by an ordinary resolution of the shareholders of the Company in general meeting.

“Rights Issue” means an offer of shares of the Company open for a period fixed by the Company or the Directors to holders of shares of the Company whose names appear on the register of members of the Company on a fixed record date in proportion to their then holdings of such shares as at that date (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 any relevant jurisdiction, or the requirements of any recognised regulatory body or any stock exchange).

1. “THAT:

(a) subject to paragraph (c) of this resolution, the exercise by the Directors during the Relevant Period (as hereinafter defined) of all the powers of the Company to repurchase shares in the share capital of the Company on the Stock Exchange or on any other stock exchange on which the securities of the Company may be listed and which is recognised by the Securities and Futures Commission of Hong Kong and the Stock Exchange for this purpose, and that the exercise by the Directors of all powers to repurchase such shares are subject to and in accordance with all applicable laws and requirements of the Listing Rules or of any other stock exchange as amended from time to time, be and is hereby generally and unconditionally approved;

(b) the approval in paragraph (a) of this resolution above shall be in addition to any other authorisation given to the Directors and shall authorise the Directors on behalf of the Company during the Relevant Period to procure the Company to repurchase its shares at a price determined by the Directors;

(c) the total number of Shares to be repurchased or agreed conditionally or unconditionally to be repurchased by the Company pursuant to the approval in paragraph (a) of this resolution during the Relevant Period shall not exceed 10% of the total number of issued Shares (excluding treasury shares, if any) as at the time of the passing of this resolution, and the said approval shall be limited accordingly; and

— 3 —

---

(d) for the purpose of this Resolution, “Relevant Period” means the period from the passing of this resolution until whichever is the earliest of:

(i) the conclusion of the next annual general meeting of the Company; or
(ii) the expiration of the period within which the next annual general meeting of the Company is required by the Articles of Association or any applicable laws of the Cayman Islands to be held; or
(iii) the date on which the authority given under this resolution is revoked or varied by an ordinary resolution of the shareholders of the Company in general meeting.”

1. “THAT: conditional upon the passing of resolutions 5 and 6 as set out in this notice convening the Meeting of which this resolution forms part, the general mandate granted to the Directors pursuant to resolution 5 as set out in this notice convening the Meeting of which this resolution forms part be and is hereby extended by the addition thereto of the total number of Shares which may be repurchased by the Company under the authority granted pursuant to resolution 6 as set out in this notice convening the Meeting of which this resolution forms part, provided that such amount shall not exceed 10% of the total number of issued Shares (excluding treasury shares, if any) as at the date of passing this resolution.”

By Order of the Board

Standard Development Group Limited

Liu Zhancheng

Chairman and Executive Director

Hong Kong, 5 September 2025

Notes:

1. Any member of the Company entitled to attend and vote at the meeting is entitled to appoint one or more proxies to attend and vote instead of him. A member who is the holder of two or more shares may appoint more than one proxy to represent him and vote on his behalf at the Meeting. A proxy need not be a member of the Company.

2. The instrument appointing a proxy shall be in writing under the hand of the appointer or his attorney duly authorised in writing, or if the appointer is a corporation, either under seal or under the hand of an officer or attorney duly authorised on its behalf.

3. Where there are joint registered holders of any shares, any one of such persons may vote at the above meeting (or any adjournment thereof), either personally or by proxy, in respect of such share as if he were solely entitled thereto; but if more than one of such joint holders by present at the above meeting personally or by proxy, that one of the said persons so present whose name stands first on the register of members of the Company in respect of such share shall alone be entitled to vote in respect thereof.

---

1. In order to be valid, the proxy form, together with the power of attorney or other authority (if any) under which it is signed or a notarially certified copy thereof, must be deposited at the Company's branch share registrar and transfer office in Hong Kong, Tricor Investor Services Limited at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong not less than 48 hours before the time appointed for holding the Meeting or any adjournment thereof.

2. Delivery of an instrument appointing a proxy shall not preclude a shareholder from attending and voting in person at the meeting and, in such event, the instrument appointing a proxy shall be deemed to be revoked.

3. An explanatory statement as required by the Listing Rules in connection with the repurchase mandate under resolution 6 above is set out in Appendix I to the Circular.

4. The transfer books and register of members of the Company will be closed from Thursday, 25 September 2025 to Tuesday, 30 September 2025, both days inclusive. During such period, no share transfers will be effected. The record date for determining Shareholders' right to attend and vote at the AGM is Tuesday, 30 September 2025. In order to qualify for attending the Meeting, all transfer documents, accompanied by the relevant share certificates, must be lodged with the Company's branch share registrar in Hong Kong, Tricor Investor Services Limited at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong for registration no later than 4:30 p.m. on Wednesday, 24 September 2025.

5. A form of proxy for use by shareholders at the Meeting is enclosed.

6. If a tropical cyclone warning signal No.8 or above is hoisted or "extreme conditions" caused by super typhoons or a black rainstorm warning signal is in force at any time after 8:00 a.m. on the date of the AGM, the AGM will be postponed. The Company will post an announcement on the respective websites of the Hong Kong Exchanges and Clearing Limited and the Company to notify members of the date, time and venue of the rescheduled meeting.

As at the date of this notice, the Board comprises Mr. Liu Zhancheng and Mr. Xu Jing as executive Directors; and Dr. Su Lixin, Mr. Liang Rongjin and Dr. Yan Bing as independent non-executive Directors.

Hong Kong Exchanges and Clearing Limited and the Stock Exchange 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.

— 5 —