中鼎股份（000887）7月29日主力资金净流出4618.02万元

Group 1 - The core point of the article highlights the financial performance and stock activity of Zhongding Company, with a closing price of 17.84 yuan as of July 29, 2025, reflecting a 0.45% increase [1] - The company reported total revenue of 4.854 billion yuan for Q1 2025, representing a year-on-year growth of 3.45%, and a net profit of 403 million yuan, up 11.52% year-on-year [1] - The company has a current ratio of 1.489, a quick ratio of 1.100, and a debt-to-asset ratio of 45.42% [1] Group 2 - Zhongding Company has made investments in 65 enterprises and participated in 43 bidding projects [2] - The company holds 12 trademark registrations and 255 patents, along with 19 administrative licenses [2]