PET plastic bottles are high-value-added waste, with simple recycling methods and relatively mature technology. A comprehensive industry chain has been established both domestically and internationally. Compared to other plastics, PET bottles have a high recycling rate. EU member states, through the establishment of a deposit system, have achieved a recycling rate of around 90%. In 2017, the EU's overall recycling rate reached 58.2%, Japan's was over 92%, and China's PET beverage bottle recycling rate reached over 94%.