Maleated Natural Rubber (MNR) from Japan
Maleated natural rubber (MNR) is natural rubber with maleic anhydride grafted onto its backbone, improving adhesion in rubber composites and coatings. It is supplied in primary forms such as crumb or powder. The grafting constitutes a chemical modification, placing it under tariff item 3913.90.00.
Duty Rate — Japan → Canada
PGA flags (1)Show detailsHide detailsCFIAAll ProgramsMay be required
- CFIA
All Programs · May be required · on some HTS numbers under this code
May require CFIA All Programs depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Within Range 3913900010–3913900090. Logic: MATCH IF (Valid HS Code).
CBSA Single Window matching criteria, unknown
Import Tips
• Document the grafting process and the percentage of maleic anhydride to support classification as a chemically modified natural polymer
• Keep the product in primary forms (crumb or powder) to avoid classification as an article
• Check with the CBSA for any required permits or certificates for rubber derivatives