​The natural decomposition conditions for biodegradable plastics such as PLA require humidity of about 70% at about 60 degrees Celsius, and spatial conditions of a closed environment are also required. In other words, it is very difficult to find biodegradable natural (e.g. landfill) soil or marine environments in reality, so a dedicated composting facility is needed. However, the Ministry of Environment said that it is difficult to know whether there are specialized composting facilities, and an official from the Ministry of Environment said in an interview with the environmental media News Penguin that general plastic plastics They stated that it is difficult to establish a separate facility for biodegradable plastics because it is difficult to classify products and biodegradable products separately.