Group 1 - The company experienced a significant stock price fluctuation, with a cumulative increase of over 30% in closing prices over three consecutive trading days on August 15, 18, and 19, 2025 [1] - The company conducted an internal investigation regarding the stock price volatility and confirmed that there were no undisclosed major events or information affecting the stock price [2] - The company has acquired minority shareholder rights in Southern Additive Technology Co., Ltd. and invested 50 million yuan to support its expansion in 3D printing services and nuclear power material collection, aiming to enhance market influence in various industries [1] Group 2 - The board confirmed that there are no undisclosed matters that should have been disclosed according to the Shenzhen Stock Exchange rules, and previous disclosures do not require correction or supplementation [2]