Dayuan Pump announced that the cumulative deviation value of the closing price increase of the company's stock exceeded 20% during 3 consecutive trading days on December 17, December 18, and December 19, 2025, which is an abnormal fluctuation in stock trading. After the company's own inspection and written consultation with the controlling shareholder and actual controller, it was confirmed that the company had no important matters or important information that should have been disclosed but not disclosed. The company currently has normal production and operation. There have been no major changes in the main business, no major adjustments to its daily operations or downstream market environment or industry policies, and the internal production and operation order is normal. It has not been discovered that the controlling shareholders, actual controllers, directors, and senior management of the company traded the company's shares during the period of abnormal fluctuations in the company's current stock trading.

Dayuan Pump announced that the cumulative deviation value of the closing price increase of the company's stock exceeded 20% during 3 consecutive trading days on December 17, December 18, and December 19, 2025, which is an abnormal fluctuation in stock trading. After the company's own inspection and written consultation with the controlling shareholder and actual controller, it was confirmed that the company had no important matters or important information that should have been disclosed but not disclosed. The company currently has normal production and operation. There have been no major changes in the main business, no major adjustments to its daily operations or downstream market environment or industry policies, and the internal production and operation order is normal. It has not been discovered that the controlling shareholders, actual controllers, directors, and senior management of the company traded the company's shares during the period of abnormal fluctuations in the company's current stock trading.