The EU argues the Japanese eel population has fallen sharply, meriting its inclusion. However, Japan's Fisheries Agency has submitted a written opinion to the EU, stating the Japanese eel population was sufficient and there was no risk of extinction because of international trade. The agency cited data saying the adult eel biomass was about 17,000 metric tons and has been recovering since the 1990s. Japan is the world's biggest eel consumer, but it imports between 70% and 80% of eels consumed from China. If listed under the treaty, international shipments would require permits issued by the exporting country based on scientific assessments.