Group 1 - The board meeting of Beijing Dangsheng Material Technology Co., Ltd. was held on May 29, 2025, via telecommunication voting, with all 9 directors present [1][2] - The board approved the "2024 Internal Control System Work Report" to enhance internal control and risk management in accordance with regulatory requirements [1][2] - The report was reviewed and approved by the board's audit committee before being submitted for board approval [1]