U.S. exports of Polymers of Vinyl Chloride or Other Halogenated Olefins (N.E.S.), Primary Forms (SITC 57399) totaled $5.2M in August 2026.
Importers of Polymers of Vinyl Chloride or Other Halogenated Olefins (N.E.S.), Primary Forms paid $46K in duties in August 2026, an average duty rate of 14.86% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Polymers of Vinyl Chloride or Other Halogenated Olefins (N.E.S.), Primary Forms imports of $302K in August 2026 ran 66% below the year-to-date monthly average of $894K.
Last updated: August 2026 dataResidual halogenated olefin polymers not captured by the named vinyl chloride, vinylidene chloride, or fluoropolymer headings fall here — a category that can include chlorinated polyethylene, polychloroprene precursors in primary form, and other specialty halogenated resins. Correct classification requires ruling out all more-specific headings first, making detailed chemical documentation essential. These materials serve niche roles in flame-retardant compounding, specialty elastomers, and chemical-resistant coatings.
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11 import shipments a month
Importers should provide a certificate of analysis identifying the monomer units, halogen type, and weight percentages, along with a written explanation of why the product does not qualify under the named headings for vinyl chloride–vinyl acetate copolymers, vinylidene chloride polymers, or fluoropolymers. A binding ruling from CBP can provide long-term classification certainty for recurring shipments.
Chlorinated polyethylene is a halogenated olefin polymer, but its classification depends on whether it is considered a chemically modified polyethylene (which would place it under polyethylene headings) or a distinct halogenated olefin polymer. This is a recognized classification gray area, and a licensed customs broker or CBP ruling is advisable before importation.
Basic heading 294 of 465 in section 5
Basic heading 57399 · $5.2M of $26.2B
ImportsExports
Imports
$302KYoY · free account
Exports
$5.2MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $10.5M of Polymers of Vinyl Chloride or Other Halogenated Olefins (N.E.S.), Primary Forms and exported $58.7M.
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
Mexico and Canada together take 41% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
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