Section VII — Plastics and articles thereof; rubber and articles thereof
Chapter 40 — Rubber and articles thereof
Heading 4002 — Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 40.01 with any product of this heading, in primary forms or in plates, sheets or strip.
National subdivision 4002.3 — Isobuteneisoprene (butyl) rubber (IIR);haloisobuteneisoprene rubber (CIIR or BIIR):
Subheading 4002.39 — Other
HS code
4002.39.00 Halo-isobutene-isoprene rubber
Last Verified Date - 1 October 2026
Common commodities
Chlorobutyl rubber balesBromobutyl sheets in dry formHalogenated butyl rubber platesCIIR crumb polymerDry BIIR crumbsUnprocessed chlorobutyl stripBromobutyl rubber in primary formsChlorobutyl rubber in platesBIIR rubber sheetsHalogenated butyl rubber bales