The decision follows collaboration between Kawasaki and Canadian company ChopValue, which transforms discarded chopsticks into durable building materials. Supporters say it could help expand circular economy projects across Japan.

Credits: envato elements; Author: Mint_Images;

ChopValue operates a micro-factory in Kawasaki where used chopsticks are sterilised and compressed into material used for furniture and construction products. The company estimates that up to 20 billion chopsticks could be upcycled annually if the model expands nationwide. The new classification may also provide a framework for other businesses seeking to turn discarded materials into reusable products.