Jin Rong Jie·2025-07-31 19:14Group 1 - The stock price of China Communication Signal Corporation (China Tonghao) closed at 5.29 yuan on July 31, down 0.12 yuan, representing a decline of 2.22% from the previous trading day [1] - The trading volume on that day was 358,957 hands, with a total transaction amount of 1.91 billion yuan [1] - China Tonghao is engaged in the research and development, manufacturing, and engineering services of rail transit control systems, covering high-speed rail, conventional rail, and urban rail transit [1] Group 2 - On July 31, China Tonghao announced that its board of directors and supervisory board approved a proposal to use idle raised funds for cash management, allowing for the use of up to 2.7 billion yuan for purchasing safe, liquid, and capital-preserving investment products [1] - On July 29, the private fund management company under China Tonghao, Tonghao Venture Capital Fund Management (Beijing) Co., Ltd., completed the registration and filing for private fund management, focusing on investment in smart rail transit, smart low-altitude, and smart city sectors [1] - On July 31, the net outflow of main funds for China Tonghao was 5.94 million yuan [1]