Tianjin Construction Development Group Co., Ltd. — Major Shareholding Notification 2026

May 22, 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 announcement.

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)

INSIDE INFORMATION

COMPLETION OF DECREASE IN SHAREHOLDING

BY CONTROLLING SHAREHOLDER

This announcement is made by Tianjin Construction Development Group Co., Ltd. (the "Company") pursuant to Rule 13.09(2)(a) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the "Listing Rules") and the Inside Information Provisions (as defined under the Listing Rules) under Part XIVA of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong).

References are made to the announcements of the Company dated 21 April 2026 and 30 April 2026 (the "Announcements") in relation to the proposed disposal of Shares by Mr. Wang. Unless otherwise specified, capitalised terms used herein should have the same meanings as defined in the Announcements.

The board of directors (the "Directors") of the Company was informed by Mr. Wang that Shengyuan Holdings disposed of 22,240,000 Shares on 23 April 2026, 16,748,028 Shares on 19 May 2026, 11,000,000 Shares on 20 May 2026 and 22,000,000 Shares on 22 May 2026 through block trading, representing approximately $8.59\%$ , $6.47\%$ , $4.25\%$ and $8.50\%$ of the total issued Shares, respectively.

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As of the date of this announcement, the proposed disposals in the Announcements have been fully implemented. The details of the decrease in shareholdings are as follows:

Shareholder name	Decrease method	Decrease period	Average price (HKD)	Decrease in Shares	Decrease percentage
Mr. Wang	Block trading	From 23 April 2026 to 22 May 2026	0.9	71,988,028	27.80%

As of the date of this announcement, Mr. Wang holds a total of 85,508,895 shares (shares without selling restrictions) in the Company, representing 33.02% of the Company's total share capital.

By order of the Board

Tianjin Construction Development Group Co., Ltd.

Wang Wenbin

Chairman and non-executive Director

Tianjin, People's Republic of China, 22 May 2026

As of the date of this announcement, 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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