BIIR Rubber Bale
Brominated isobutene-isoprene rubber (BIIR) compressed into rectangular bales for storage and transport, used in pharmaceutical stoppers. HTS 4002.39.00.00 covers this as 'other' primary form bale of halo-butyl rubber, retaining raw material character.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If plain isobutene-isoprene without halogenation
Non-halo IIR moves to specific 4002.19 subheading, distinct from 'other' halo variants.
If pre-mixed with vulcanizing accelerators beyond permitted
Note 5(a)(i) excludes such compounded rubber from 4002, into rubber accelerant preparations.
If processed into tubes or profiles post-import
Finished articles like tubes fall under 4009, not primary forms.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include mill test reports showing compliance with synthetic rubber vulcanization test from Chapter Note 2
• Weigh bales precisely; oversized or irregular shapes risk reclassification as scrap
Related Products under HTS 4002.39.00.00
Butyl Rubber Latex Dispersion
A liquid dispersion of butyl rubber (IIR) in water, used for dipping and coating applications in manufacturing gloves and balloons. Classified under HTS 4002.39.00.00 as synthetic rubber in primary form (latex), meeting Chapter 40 note definitions for prevulcanized latex without prohibited compounding agents.
CIIR Powder Form
Micronized chlorobutyl rubber powder for compounding in adhesives, classified as primary form powder under HTS 4002.39.00.00. Meets Chapter 40 definitions for uncompounded synthetic rubber granules/powders.
IIR Rubber Lump Blocks
Irregular lump blocks of isobutene-isoprene rubber for further processing into sheets, in primary bulk form. HTS 4002.39.00.00 as 'other' IIR, compliant with primary forms note excluding worked shapes.
Exxon Butyl 268 Rubber Pellets
Commercial ExxonMobil Butyl 268 grade IIR in pellet form for injection molding compounds. HTS 4002.39.00.00 for primary pellets of butyl rubber, free of disallowed additives.
Lanxess Bromobutyl BB2030
Lanxess BB2030 bromobutyl rubber in crumb form for tire curing bladders. Primary form under HTS 4002.39.00.00 as halo-isobutene-isoprene 'other'.
Chlorobutyl Rubber Scrap-Free Crumbs
Processed CIIR crumbs from calendaring, usable as primary input without waste status. HTS 4002.39.00.00 per note distinguishing bulk forms from scrap.