Group 1 - The latest stock price of Kailong High-Tech is 15.81 yuan, reflecting an increase of 0.83% compared to the previous trading day [1] - The stock reached a maximum of 15.85 yuan and a minimum of 15.43 yuan during the trading session, with a total transaction amount of 0.4 billion yuan [1] - The company specializes in the research, production, and sales of automotive exhaust after-treatment systems, including diesel and gasoline engine exhaust after-treatment systems [1] Group 2 - Recently, the company has collaborated with Hunan University to advance the research and development of aluminum silicon carbide brake discs, having submitted three related patent applications that have been accepted [1] - On August 4, the net outflow of main funds was 6.87 million yuan, with a cumulative net outflow of 18.74 million yuan over the past five trading days [1] - As of July 31, the total number of shareholders in the company was 10,300, representing an increase of 5.32% since July 10, with an average holding of 128,800 yuan per shareholder [1]