Bioplastic soap box 1.Made from natural corn starch. 2.Biodegradable and compostable. 3.Green Product Material:PSM in Non-GMO corn starch, The raw material certificates:EN13432,ASTM D6400,OK COMPOST,DIN CERTCO,BPI,EN13432, ASTM D6400, Ok Compost and DIN CERTCO Biodegradable soap box/Bioplastic soap bottle/Natural plastic soap box