Synthetic Isoprene-Butadiene Rubber (SIBR) from Japan
Butadiene rubber copolymerized with a small amount of isoprene, in granular primary form for tire treads. The product is predominantly butadiene rubber and meets the BR criteria under Chapter 40 Note 4.
Duty Rate — Japan → Canada
0%
Import Tips
• Confirm the isoprene content is minor and the rubber retains BR's essential character
• Have composition data available for CBSA
• Use 4002.20.00 for customs clearance