Group 1 - The stock price of Weichai Heavy Machinery reached 43.57 yuan as of July 31, 2025, reflecting an increase of 0.95% compared to the previous trading day, with a trading volume of 1.323 billion yuan and a turnover rate of 18.56% [1] - Weichai Heavy Machinery operates in the general equipment manufacturing industry, focusing on the research, production, and sales of diesel engines, generator sets, and related components. The company is a key enterprise in Shandong Province and is involved in concepts such as generator sets and the Shenzhen-Hong Kong Stock Connect [1] - On the evening of July 31, Weichai Heavy Machinery announced that its second extraordinary general meeting of shareholders in 2025 approved several resolutions, including adjustments to related party transactions with Weichai Power and its subsidiaries [1] Group 2 - On July 31, the net outflow of main funds for Weichai Heavy Machinery was 10.1878 million yuan, accounting for 0.14% of the circulating market value [2]