2025年1-4月制造业企业有483650个，同比增长3.42%

Group 1 - The core viewpoint of the article highlights the growth in the number of manufacturing enterprises in China, which reached 483,650 in the first four months of 2025, representing an increase of 15,981 enterprises or a year-on-year growth of 3.42% [1] - The manufacturing enterprises accounted for 93.15% of the total industrial enterprises, indicating a significant concentration in this sector [1] - The data reflects a change in the threshold for scale industrial enterprises, which was raised from an annual main business income of 5 million to 20 million yuan since 2011 [1] Group 2 - The article references a report by Zhiyan Consulting titled "Analysis of the Competitive Landscape and Investment Development Research of China's Manufacturing Industry from 2025 to 2031" [1] - Zhiyan Consulting is noted as a leading industry consulting firm in China, specializing in deep industry research and providing comprehensive consulting services for investment decisions [1]