HS Code 3903

Polystyrene in Primary Forms

HS code 3903 covers polymers of styrene in primary forms, such as expandable beads for insulation and granules for rigid plastic mouldings.

4-digit Section VIIFCL

HS Code 3903 — Polystyrene in Primary Forms

This code covers polystyrene, including expandable (EPS) and high-impact (HIPS) varieties, in raw forms like beads or granules. It is used to manufacture everything from protective foam packaging to rigid plastic cutlery and jewel cases.

What's included

  • Expandable polystyrene (EPS)
  • General purpose polystyrene (GPPS)
  • High-impact polystyrene (HIPS)
  • Styrene-acrylonitrile (SAN) copolymers

What's excluded

  • Styrene-butadiene rubber → use 4002 (Synthetic rubbers are classified under Chapter 40.)

Common examples

  • EPS beads for foam production
  • HIPS granules for food trays
  • Crystal polystyrene pellets
  • SAN resin for household goods

Frequently asked questions

Is ABS plastic included here?

No, Acrylonitrile-butadiene-styrene (ABS) is specifically classified under HS code 3903.30.

Trade & shipping notes

  • Typical duty range: 0% - 6.5%
  • Documentation: Specify if the material is 'expandable' on the commercial invoice as it changes the 6-digit sub-classification.
  • Typical shipping mode: FCL
  • Top exporters: South Korea, Taiwan, Germany
  • Top importers: China, United States, Mexico

Key takeaway

Covers both the rigid and expandable foam-base forms of styrene polymers.

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