ANNOUNCEMENTISSUE OF THE SECOND TRANCHE SUPER SHORT-TERM COMMERCIALPAPER FOR THE YEAR OF 2024

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.Datang Environment Industry Group Co. Ltd.* (A joint stock company incorporated in the People’s Republic of China with limited liability) (Stock Code: 1272) ANNOUNCEMENT ISSUE OF THE SECOND TRANCHE SUPER SHORT-TERM COMMERCIAL PAPER FOR THE YEAR OF 2024 This announcement is made by Datang Environment Industry Group Co. Ltd.* (the “Company”) pursuant to Rule 13.09 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).Reference is made to the circular of the extraordinary general meeting of the Company dated 18 September 2023 (the “Circular”) and the announcement on poll results of the extraordinary general meeting dated 20 December 2023. Unless otherwise specified the terms used herein shall have the same meanings as those defined in the Circular.The board (the “Board”) of directors (the “Directors”) of the Company is pleased to announce that the Company has completed the issuance of the second tranche super short-term commercial paper for the year of 2024 (the “SCP”) to qualified institutional investors in the People’s Republic of China with Bank of Nanjing Co. Ltd.* (南京银行股份有限公司) as the principal underwriter and bookrunner on 5 July 2024 and received the proceeds from such issuance. The issuance size of the SCP is RMB500 million with a term of 106 days and face value of RMB100. The interest rate for the issue of SCP is 1.77%.The proceeds from the SCP after deducting issue expenses is proposed to be used for repayment of interest-bearing liabilities.The issuance of the SCP does not constitute any transaction under Chapter 14 and Chapter 14A of the Listing Rules.- 1 -This announcement does not constitute or form part of an offer or invitation or solicitation or inducement of an offer to subscribe for or purchase any of the SCP or other securities of the Company nor is this announcement published to invite offers for any securities of the Company.Holders of shares or other securities of the Company and potential investors of the Company should exercise caution when dealing in the shares or other securities of the Company.By order of the Board Datang Environment Industry Group Co. Ltd.* Zhu Liming Chairman Beijing the PRC 5 July 2024 As at the date of this announcement the executive Director is Mr. Zhu Liming; the non-executive Directors are Mr. Wang Junqi Mr. Shen Zhen Mr. Wu Daqing Mr. Chen Kan and Mr. Song Yunpeng; and the independent non-executive Directors are Mr. Ye Xiang Mr. Mao Zhuanjian and Mr. Gao Jiaxiang.This announcement is available on the websites of The Stock Exchange of Hong Kong Limited (www.hkexnews.hk) and the Company (www.dteg.com.cn).* For identification purpose only