Group 1 - The core viewpoint of the articles highlights the significant infrastructure improvements and investments in the Jiangnan Industrial Concentration Zone, aimed at enhancing the region's industrial development and environmental standards [1][3] - The first sewage treatment plant is undergoing expansion to increase its capacity to process 50,000 tons of wastewater per day, with construction nearly complete at 95% [1] - The project includes the construction of 8 new units and the renovation of 16 existing units, ensuring that the treated water meets Class A discharge standards [1] Group 2 - The reconstruction of the Meilong No. 1 station is underway to improve flood control and drainage capabilities, with the main structure completed at nearly 80% [2] - The new station is expected to significantly enhance the overall flood control capacity of the park and provide irrigation for over 5,000 acres of farmland with a flow rate of 0.5 cubic meters per second [2] - The Jiangnan Industrial Concentration Zone has planned 13 infrastructure projects to address shortfalls in municipal facilities, environmental management, and logistics, with 11 projects currently under construction [3]