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

Apr 21, 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.

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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 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).

The Company has been informed by Mr. Wang Wenbin (‘‘Mr. Wang’’), the controlling shareholder of the Company (the ‘‘Controlling Shareholder’’), that Mr. Wang plans to dispose of certain number of shares of the Company (the ‘‘Shares’’) through his holding company, namely Shengyuan Group Holdings (Tianjin) Co., Ltd. (盛 源 集團 控 股（ 天津 ） 有 限 公司) (‘‘Shengyuan Holdings’’) before 30 April 2026 (the ‘‘Proposed Disposal’’), subject to percentage restrictions under the applicable laws of the People’s Republic of China.

The total number of Shares to be disposed of by Shengyuan Holdings through block trading shall be no more than 71,988,028 Shares, representing approximately 27.80% of the total issued shares of the Company as at the date of this announcement.

The Company was informed that assuming the issued Shares remains unchanged as at the date of completion of the Proposed Disposal, immediately following the completion of the Proposed Disposal, Mr. Wang will remain as the beneficial owner of 85,508,895 Shares, representing approximately 33.02% of the issued Shares, and as one of the Controlling Shareholders (as defined under the Listing Rules) of the Company. The Proposed Disposal will not result in any change in the Controlling Shareholders.

The Company will make further announcements in relation to the Proposed Disposal and comply with all applicable requirements under the Listing Rules as and when necessary.

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Shareholders and potential investors of the Company are advised to exercise caution when dealing in the shares of the Company.

By order of the Board Tianjin Construction Development Group Co., Ltd. Wang Wenbin Chairman and non-executive Director

Tianjin, People’s Republic of China, 21 April 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 and Mr. Ni Baqun 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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