Tianjin Construction Development Group Co., Ltd. — 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 announcement, 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.

T J C D

天津建设发展集团股份公司

Tianjin Construction Development Group Co., Ltd.

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

(Stock Code: 2515)

NOTICE OF EXTRAORDINARY GENERAL MEETING

NOTICE IS HEREBY GIVEN that an extraordinary general meeting (the “EGM”) of Tianjin Construction Development Group Co., Ltd. (the “Company”) will be convened and held at No. 112 Dongting Road, Economic and Technological Development Zone, Binhai New Area, Tianjin, PRC on Friday, 12 June 2026 at 10:00 a.m. for the purpose of considering and, if thought fit, passing, with or without amendments, the following resolutions of the Company:

SPECIAL RESOLUTIONS

1. To consider and to approve the proposed increase in registered capital of the Company; and
2. To consider and to approve the proposed amendment to the Articles of Association of the Company.

By order of the Board

Tianjin Construction Development Group Co., Ltd.

Wang Wenbin

Chairman and non-executive Director

Hong Kong, 26 May 2026

Notes:

1. The resolution at the EGM will be taken by poll (except where the chairman decides to allow a resolution relating to a procedural or administrative matter to be voted on by a show of hands) pursuant to the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited. The results of the poll will be published on the websites of the Company at www.tjcdg.com and The Stock Exchange of Hong Kong Limited at www.hkexnews.hk after the EGM.

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1. Any shareholder entitled to attend and vote at the EGM convened by the above notice is entitled to appoint one or more proxies to attend and vote instead of him/her. A proxy need not be a shareholder of the Company.

2. In order to be valid, the instrument appointing a proxy together with the power of attorney or other authority, if any, under which it is signed, or a notarially certified copy of such power of attorney or authority, must be completed and returned to the Company's H share registrar of the Company in Hong Kong, Tricor Investor Services Limited, at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong (for holders of H shares of the Company), at least 24 hours before the EGM (i.e. before 10:00 a.m. on Thursday, 11 June 2026) or any adjourned meeting thereof. Completion and return of the form of proxy will not preclude a shareholder from attending and voting at the EGM or any adjourned meeting thereof should he/she so wish.

3. For the purpose of determining the list of shareholders who are entitled to attend the EGM, the register of members of the Company will be closed from Tuesday, 9 June 2026 to Friday, 12 June 2026, both days inclusive, during which period no transfer of shares will be registered. In order to be eligible to attend and vote at the EGM, unregistered holders of the shares shall ensure all properly completed transfer documents accompanied by the relevant share certificates 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 not later than 4:30 p.m. on Monday, 8 June 2026 for registration.

4. In case of joint shareholders, the vote of the senior joint shareholder who tenders a vote, whether in person or by proxy, will be accepted to the exclusion of the votes of the other joint shareholder(s) and for this purpose, seniority will be determined by the order in which the names stand in the register of members of the Company in respect of the joint shareholding.

5. Shareholders who attend the meeting in person or by proxy shall bear their own travelling and accommodation expenses.

6. A shareholder or his/her proxy should produce proof of identity when attending the EGM.

7. References to date and time in this notice are to Hong Kong dates and time.

8. The contact of the Company:

Address: Room 116, No. 112 Dongting Road, Tianjin Economic Technological Development Area

Tel: 022-25361111-8303

Contact person: Gan Shuang

As of the date of this notice, the Board of Directors of the Company comprises: (i) Mr. Zhao Kuanghua, Ms. Guan Fengdan, Mr. Yang Youhua, Mr. Ni Baqun and Mr. Ma Guoqun as executive Directors; (ii) Mr. Wang Wenbin as Chairman and non-executive Director; and (iii) Dr. Yan Bing, Dr. Liu Jinlu and Mr. Shiu Shu Ming as independent non-executive Directors.

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