Polymers of styrene, in primary forms
In plain English
This heading covers polymers of styrene that are in primary forms. The goods are divided based on their specific composition, including expansible polystyrene, other styrene polymers, styrene-acrylonitrile copolymers, and acrylonitrile-butadiene-styrene copolymers. Any styrene polymers in primary forms not listed in those specific categories fall into the remaining category.
6-digit subheadings (5)
Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.
Styrene polymers; expansible polystyrene, in primary forms
Styrene polymers; (other than expansible polystyrene), in primary forms
Styrene polymers; styrene-acrylonitrile (SAN) copolymers, in primary forms
Styrene polymers; acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms
Styrene polymers; in primary forms, n.e.c. in heading no. 3903
Chapter 39 classification notes
Frequent misclassification in this chapter
Composite articles (e.g., plastic with textile lining) — classify by the material giving essential character. Silicone products are often misclassified here but belong in Chapter 39.
Classification certainty
The 6-digit level shown here is the internationally harmonised layer. Duty rates attach to national 8-10 digit tariff lines, which differ by country — use the duty calculator for lane estimates. For binding certainty, request a ruling from the destination customs authority.
Binding tariff ruling databaseOther headings in Chapter 39
- 3901 — Polymers of ethylene, in primary forms
- 3902 — Polymers of propylene or of other olefins, in primary forms
- 3904 — Polymers of vinyl chloride or of other halogenated olefins, in primary…
- 3905 — Polymers of vinyl acetate or of other vinyl esters, in primary forms; …
- 3906 — Acrylic polymers in primary forms
- 3907 — Polyacetals, other polyethers and epoxide resins, in primary forms; po…
- 3908 — Polyamides in primary forms
- 3909 — Amino-resins, phenolic resins and polyurethanes, in primary forms
- 3910 — Silicones in primary forms
- 3911 — Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides…
- 3912 — Cellulose and its chemical derivatives, n.e.c. or included, in primary…
- 3913 — Natural polymers (e.g. alginic acid) and modified natural polymers (e.…
- 3914 — Ion-exchangers; based on polymers of heading no. 3901 to 3913, in prim…
- 3915 — Waste, parings and scrap, of plastics
- 3916 — Monofilament of which any cross-sectional dimension exceeds 1mm, rods,…
- 3917 — Tubes, pipes and hoses and fittings thereof (for example, joints, elbo…
- 3918 — Floor coverings of plastics, self-adhesive or not, in rolls or tiles; …
- 3919 — Self-adhesive plates, sheets, film, foil, tape, strip and other flat s…
- 3920 — Plastics; plates, sheets, film, foil and strip (not self-adhesive); no…
- 3921 — Plastic plates, sheets, film, foil and strip n.e.c. in chapter 39
- 3922 — Sanitary ware; baths, shower-baths, sinks, wash-basins, bidets, lavato…
- 3923 — Plastic articles for the conveyance or packing of goods; stoppers, lid…
- 3924 — Tableware, kitchenware, other household articles and hygienic or toile…
- 3925 — Plastics; builders' wares n.e.c. or included
- 3926 — Articles of plastics and articles of other materials of heading no. 39…