Core Viewpoint - Beijing Jinchengzi Technology Co., Ltd. experienced a significant stock price fluctuation, with a cumulative closing price increase of 30% over three consecutive trading days, triggering abnormal trading conditions as per relevant stock exchange regulations [1][2][3] Group 1: Stock Trading Abnormalities - The company's stock price increased by 30% over three trading days: June 12, June 13, and June 16, 2025, indicating abnormal trading activity [1][2] - The company has conducted a self-examination and confirmed that its daily operations remain normal without any significant changes [2][3] Group 2: Business Operations and Major Events - The company has verified that there are no undisclosed major events, including mergers, debt restructuring, or asset injections, that could impact its stock price [2][3] - The company produces laser 3D printing control systems, with some products applicable to industrial-grade 3D printing, but these products accounted for less than 2% of total revenue in 2024 [3] Group 3: Market Sentiment and Media Reports - The company is aware of recent market discussions regarding its business and the 3D printing concept, but emphasizes that its products are primarily used in a limited customer base [2][3] - No significant events that could impact the company's stock price have been identified by the company during the abnormal trading period [3]