China Railway Construction Heavy Industry: Stock price has experienced abnormal fluctuations for three consecutive days, no undisclosed major information has been verified.

China Railway Construction Heavy Industry Group Co., Ltd. announced that the closing prices of the company's stock on July 18, 21, and 22, 2025, have cumulatively deviated by 30% for three consecutive trading days, constituting abnormal fluctuations in stock trading according to relevant rules of the Shanghai Stock Exchange. After self-examination by the company and verification from the controlling shareholder China Railway Construction Corporation Limited, as of the disclosure date of July 23, the company's production and operation are normal, with no significant fluctuations in market environment, industry policies, cost sales, etc.; both the controlling shareholder and the company have no undisclosed major information to disclose, nor are they planning any major events such as mergers and reorganizations; there have been no media reports or rumors affecting the stock price; during the abnormal fluctuations, the company's board, senior managers, core technical personnel, and controlling shareholder have not engaged in any trading of company stock. The company reminds investors to rely on designated media for information disclosure and to be aware of investment risks.