中山大洋电机股份有限公司股票交易异常波动公告

Group 1 - The stock of Zhongshan Dayang Electric Co., Ltd. experienced an abnormal trading fluctuation, with a cumulative closing price increase exceeding 20% over three consecutive trading days (September 12, 15, and 16, 2025) [2] - The company conducted a self-examination and confirmed that there were no undisclosed significant matters that could impact the stock price, and the operational situation remains normal [3][4] - The company’s controlling shareholder and actual controller did not engage in any trading of the company's stock during the abnormal fluctuation period [3] Group 2 - The company announced the cancellation of 201,600 stock options from the 2020 stock option incentive plan that were not exercised by the expiration of the third exercise period [7] - The cancellation of the stock options has been completed as of September 16, 2025, and will not affect the company's capital structure or financial results [8]