Product classification

HS code for ABS resin: 3903.30

Styrene polymers, acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms.

Classification of ABS resin under HS 3903.30

ABS resin, or Acrylonitrile-Butadiene-Styrene, is classified under HS code 3903.30. This classification is found within Chapter 39, which covers plastics and articles thereof. Heading 3903 is specifically for polymers of styrene in primary forms. ABS is a terpolymer made by polymerizing styrene and acrylonitrile in the presence of polybutadiene. Because styrene is typically the dominant monomer or the defining characteristic of the copolymer's classification within the 3903 heading, ABS is explicitly provided for in subheading 3903.30. The term "primary forms" is defined in Note 6 to Chapter 39 and includes liquids, pastes, blocks, lumps, powders, granules, flakes, and similar bulk forms. This code is used by manufacturers and plastic molders who import the raw material before it is shaped into finished consumer or industrial goods.

Covers
  • ABS resin pellets
  • ABS plastic granules
  • Acrylonitrile-butadiene-styrene copolymers in powder form
  • Natural or colored ABS resin in primary forms
Also under 3903.30
  • LG Chem ABS
  • CHIMEI Polylac ABS
  • SABIC Cycolac ABS
  • INEOS Styrolution Terluran ABS
  • Kumho ABS

Codes often confused with 3903.30

Common mistake. ABS resin is frequently misclassified under HS code 3903.19, which is for "other" polystyrene. While ABS contains styrene, it is a specific copolymer that has its own dedicated subheading (3903.30). Another common error is classifying ABS under 3920.30, which is for plates, sheets, film, foil, and strip of polymers of styrene. Code 3920.30 should only be used if the ABS has been extruded into a flat shape, whereas 3903.30 is for the raw resin. Additionally, finished ABS parts should be classified under 3926.90 or their specific functional headings, not as the resin itself.

3903.19Styrene polymers; (other than expansible polystyrene), in primary forms3920.30Plastics; of polymers of styrene, plates, sheets, film, foil and strip (not self-adhesive), non-cellular and not reinforced, laminated, supported or similarly combined with other materials3926.90Plastics; other articles n.e.c. in chapter 39

Top exporters and importers of HS 390330 (the code used for ABS resin), 2025

In 2025, the largest exporter of HS 390330 (the code used for ABS resin) in UN Comtrade data was South Korea, with 30% of world exports; the largest importer in UN Comtrade data was China, with 18% 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 390330, not only ABS resin.

Top exporters 2025 · share of world exports

  1. 1 South Korea $1.7B
  2. 2 Taiwan* ~$961M
  3. 3 China $594M

World total: $5.8B Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 China $1.2B
  2. 2 Vietnam* ~$435M
  3. 3 United States $416M

World total: $6.5B 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. 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 ABS resin

Brazil splits HS 3903.30 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 ABS resin

What is the HS code for ABS resin?

The HS code for ABS resin is 390330 (Styrene polymers; acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms). The HS code for ABS resin in primary forms (like pellets or granules) is 3903.30.

How do I classify ABS resin for customs?

ABS resin is classified under HS code 390330 — Styrene polymers; acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms. This is a 6-digit subheading level code.

Is recycled ABS resin classified under the same code?

Yes, as long as the recycled ABS is in a primary form such as regrind or pellets, it is classified under 3903.30, though some local jurisdictions may require additional waste-related documentation.

Which countries are the top exporters of ABS resin (HS 390330)?

In 2025, the top exporters of HS 390330 (the code used for ABS resin) in UN Comtrade data were South Korea ($1.7B, 30% of world exports), Taiwan (about $961M) and China ($594M). World exports came to about $5.8B, 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 ABS resin (HS 390330)?

In 2025, the top importers of HS 390330 (the code used for ABS resin) in UN Comtrade data were China ($1.2B, 18% of world imports), Vietnam (about $435M) and the United States ($416M). World imports came to about $6.5B, 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 ABS resin the same in all countries?

The base HS code 390330 for ABS resin 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 ABS resin in Brazil?

Brazil splits HS 390330 into 2 NCM codes, so the right one for ABS resin depends on the product's details: 3903.30.10 (ABS copolymers with filler), 3903.30.20 (ABS copolymers without filler).