Group 1 - The core event is the signing of the first batch of "Water Saving Loans" in Shenzhen, guided by the Shenzhen Water Authority and organized by China Construction Bank Shenzhen Branch in collaboration with the Shenzhen Water Saving Technology Association [1] - Four enterprises received financing credit amounting to nearly 30 million yuan, which will be utilized in areas such as contract water management, construction of water-saving units, pipeline leak detection, and renovation of secondary water supply facilities [1]

Group 1 - Ningbo faces dual pressures of water resource shortages and increasing demand due to accelerated urban-rural integration, leading to a focus on addressing pipeline leakage as a breakthrough point [1] - The introduction of third-party water-saving service companies aims to implement contract water-saving management projects, integrating advanced water-saving technologies to provide services and share savings benefits [1][2] - The collaboration between Xiangshan Water Group and Donghai Group represents Ningbo's first attempt at contract water-saving management, achieving shared benefits from water-saving efforts through systematic detection and upgrades of water supply networks [1][2] Group 2 - The partnership has led to the establishment of a smart water management system, significantly reducing pipeline leakage rates from 36.15% to 13.73%, resulting in cumulative water savings of 41.26 million cubic meters and operational cost savings of 61.89 million yuan [2] - The contract water-saving project has seen an investment of 30.83 million yuan over three years, yielding actual returns of 35.46 million yuan and a profit of 4.62 million yuan, demonstrating a win-win situation for both the water supply and water-saving service companies [2] - Ningbo has implemented 29 contract water-saving management projects citywide, achieving annual water savings of 15 million cubic meters and direct economic benefits exceeding 45 million yuan, creating a new model for collaborative water resource utilization [3]