东材科技：股票交易异常波动公告

Core Viewpoint - Dongcai Technology announced that its stock price had deviated significantly, with a cumulative increase of over 20% during three consecutive trading days from September 10 to September 12, 2025, indicating abnormal trading activity [1] Summary by Relevant Sections - Stock Price Movement - The stock price of Dongcai Technology experienced a cumulative increase of over 20% across three consecutive trading days [1] - Company Response - The company conducted a self-examination and confirmed that there were no undisclosed significant information as of the date of the announcement [1] - Communication with Stakeholders - Dongcai Technology sent inquiries to its controlling shareholder and actual controller to verify the absence of undisclosed information [1]