Hydroxyl-Terminated Polyisoprene (HTPI) from Mexico
Hydroxyl-terminated polyisoprene (HTPI) is a telechelic natural rubber derivative with hydroxyl end-groups, used as a reactive prepolymer in polyurethane elastomers and adhesives. It is supplied as a viscous liquid or solid in drums. As a modified natural polymer in primary forms, it falls under this tariff item.
Duty Rate — Mexico → Canada
0%
Import Tips
• Classify HTPI under this item only if it is a derivative of natural rubber, not a fully synthetic polyisoprene
• Provide evidence of the natural rubber base material
• Check if the liquid form meets the definition of primary forms under Chapter 39 note 6