Product classification

HS code for Halogenated polyolefin: 3904.90

Vinyl chloride, other halogenated olefin polymers, n.e.c. in heading no. 3904.

Classification of halogenated polyolefin under HS 3904.90

Halogenated polyolefins are classified under HS code 3904.90 because they are polymers of halogenated olefins that do not fall under the more specific subheadings of heading 3904. Heading 3904 generally covers polymers of vinyl chloride or of other halogenated olefins, in primary forms. While subheadings 3904.10 through 3904.69 cover specific substances like poly(vinyl chloride) and fluoro-polymers like PTFE, the 3904.90 code serves as a residual category for \"other\" halogenated olefin polymers. This classification is determined by the chemical structure of the polymer, specifically the presence of halogen atoms (fluorine, chlorine, bromine, or iodine) attached to the olefinic backbone. According to the General Rules of Interpretation (GRI) 1 and 6, the product must be in a primary form, such as liquids, pastes, blocks, or powders, to remain within this chapter. If the polyolefin has been further processed into a finished article, it would move to headings 3917 through 3926. The technical nature of these polymers, often used for specialized coatings or chemical-resistant components, requires precise chemical analysis to confirm the absence of non-halogenated monomers that might shift the classification to heading 3901 or 3902.

Covers
  • Chlorinated polyethylene in primary forms
  • Chlorosulfonated polyethylene
  • Polyvinylidene fluoride (PVDF) not elsewhere specified
  • Brominated polyolefins
  • Fluorinated ethylene-propylene (FEP) in primary forms
Also under 3904.90
  • Arkema Kynar (PVDF)
  • Solvay Halar (ECTFE)
  • Dow Tyrin (CPE)
  • Kaneka Kane Ace (CPE)
  • Sekisui CPVC

Codes often confused with 3904.90

Common mistake. These products are frequently confused with non-halogenated polyolefins under heading 3901 (polyethylene) or 3902 (polypropylene). The presence of even a small amount of halogen atoms necessitates a move to 3904. Additionally, specific fluoro-polymers like PTFE are classified under 3904.61, and should not be placed in the residual 3904.90 category if they meet the specific purity and structural requirements of the earlier subheadings.

39.01Polymers of ethylene, in primary forms39.02Polymers of propylene or of other olefins, in primary forms39.04Polymers of vinyl chloride or of other halogenated olefins, in primary forms3904.61Halogenated olefin polymers; fluoro-polymers, polytetrafluoroethylene, in primary forms

Top exporters and importers of HS 390490 (the code used for halogenated polyolefin), 2025

In 2025, the largest exporter of HS 390490 (the code used for halogenated polyolefin) in UN Comtrade data was Thailand, with 22% of world exports; the largest importer in UN Comtrade data was India, with 57% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.

Figures cover everything classified under HS 390490, not only halogenated polyolefin.

Top exporters 2025 · share of world exports

  1. 1 Thailand $114M
  2. 2 Japan $88M
  3. 3 United States $76M

World total: $509M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 India $324M
  2. 2 China $22M
  3. 3 Belgium $21M

World total: $570M Reported figures on UN Comtrade ↗

How these figures are built

109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).

Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.

Brazil NCM codes for halogenated polyolefin

Brazil splits HS 3904.90 into 2 NCM codes. Pick the one that matches your product:

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.

Questions about halogenated polyolefin

What is the HS code for Halogenated polyolefin?

The HS code for Halogenated polyolefin is 390490 (Vinyl chloride, other halogenated olefin polymers; n.e.c. in heading no. 3904). The HS code for halogenated polyolefins in primary forms, not elsewhere specified, is 3904.90.

How do I classify Halogenated polyolefin for customs?

Halogenated polyolefin is classified under HS code 390490 — Vinyl chloride, other halogenated olefin polymers; n.e.c. in heading no. 3904. This is a 6-digit subheading level code.

How does 3904.90 differ from 3904.10?

HS code 3904.10 is strictly for poly(vinyl chloride) not mixed with any other substances, whereas 3904.90 is a residual category for other halogenated olefin polymers that do not meet the definitions of the preceding subheadings.

Which countries are the top exporters of halogenated polyolefin (HS 390490)?

In 2025, the top exporters of HS 390490 (the code used for halogenated polyolefin) in UN Comtrade data were Thailand ($114M, 22% of world exports), Japan ($88M) and the United States ($76M). World exports came to about $509M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Which countries are the top importers of halogenated polyolefin (HS 390490)?

In 2025, the top importers of HS 390490 (the code used for halogenated polyolefin) in UN Comtrade data were India ($324M, 57% of world imports), China ($22M) and Belgium ($21M). World imports came to about $570M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Is the HS code for Halogenated polyolefin the same in all countries?

The base HS code 390490 for Halogenated polyolefin is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.

What is the NCM code for halogenated polyolefin in Brazil?

Brazil splits HS 390490 into 2 NCM codes, so the right one for halogenated polyolefin depends on the product's details: 3904.90.10 (Chlorinated PVC (CPVC)), 3904.90.90 (Other halogenated olefin polymers).