朗进科技跌2.11%，成交额394.87万元

Group 1 - The core viewpoint of the news is that Langjin Technology's stock has experienced fluctuations, with a recent decline of 2.11% and a total market value of 1.665 billion yuan [1] - As of December 2, Langjin Technology's stock price is 18.12 yuan per share, with a trading volume of 3.9487 million yuan and a turnover rate of 0.24% [1] - The company has seen a year-to-date stock price increase of 5.72%, but a decline of 0.55% over the last five trading days and 2.37% over the last twenty days [1] Group 2 - Langjin Technology's main business includes air conditioning for rail transit vehicles, new energy vehicle air conditioning, intelligent thermal management products, and digital energy intelligent environmental control products [1] - The revenue composition of Langjin Technology is as follows: 69.87% from rail transit vehicle air conditioning and services, 23.83% from new energy and intelligent thermal management products, and 3.53% from digital energy intelligent environmental control products [1] - As of November 20, the number of shareholders of Langjin Technology has increased by 1.06% to 10,500, with an average of 8,695 circulating shares per person, a decrease of 1.05% [2] Group 3 - For the period from January to September 2025, Langjin Technology achieved an operating income of 536 million yuan, a year-on-year decrease of 8.12%, while the net profit attributable to the parent company was -13.502 million yuan, an increase of 68.81% year-on-year [2] - Since its A-share listing, Langjin Technology has distributed a total of 40.5201 million yuan in dividends, with 9.1877 million yuan distributed over the past three years [2] - As of September 30, 2025, the top ten circulating shareholders of Langjin Technology saw the exit of the Noan Multi-Strategy Mixed A fund from the list [2]