The document summarizes a workshop on water pollution in China hosted by Nanjing University. It discusses how companies can help address the issue through their supply chains. Specifically, it outlines approaches some companies are taking, including risk assessments of water use, ensuring supplier compliance with environmental standards, creating industry groups to establish water quality guidelines, providing training to suppliers, and engaging local communities. The main challenges to these supply chain efforts are also noted, such as regulatory issues, lack of civil society pressure, technical complexity, and prioritizing short-term costs over long-term investment.