All right. 1. platform: this platform is initiated by the government and enterprises of China * * * *, with the Internet of Things and blockchain technology as the core, to build a digital platform and realize the visual traceability of the whole process of marine plastics from recycling to application. This mode not only improves the efficiency of garbage disposal, but also enhances the transparency of the whole process. 2. Economy: By combining plastic application enterprises, coastal people can participate in the collection of marine wastes, so as to maximize the utilization of resources. At the same time, it also provides employment opportunities for low-income people and fishermen and promotes the development of local economy.