HS code 3921.11: Cellular, of polymers of styrene
Last updated
Key facts
- HS code
- 3921.11
- Covers
- Cellular, of polymers of styrene
- Edition
- HS2022
- Duty rates
- Set by each country’s tariff
Summary
HS code 3921.11 covers cellular, of polymers of styrene. It sits in heading 39.21 (other plates, sheets, film, foil and strip, of plastics) in chapter 39 (plastics and articles thereof). Other goods of heading 39.21 are classified under 3921.12 (cellular, of polymers of vinyl chloride), 3921.13 (cellular, of polyurethanes), 3921.14 (cellular, of regenerated cellulose), 3921.19 (cellular, of other plastics) or 1 other.
What this code covers
HS code 3921.11 covers cellular, of polymers of styrene.
The legal text of the subheading is “Cellular: Of polymers of styrene”, read under “Cellular”, in HS2022.
What it doesn’t cover
Other goods of heading 39.21 are classified under 3921.12 (cellular, of polymers of vinyl chloride), 3921.13 (cellular, of polyurethanes), 3921.14 (cellular, of regenerated cellulose), 3921.19 (cellular, of other plastics) or 1 other.
How it is structured
3921.11 is a six-digit subheading. Its first two digits, 39, are the chapter; the first four, 3921, are heading 39.21; the last two, 11, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Chapter 39
- Plastics and articles thereof
- Within the heading
- Cellular
- Subheading 3921.11
- Of polymers of styrene
In other countries
No national tariff lines under 3921.11 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 3921.11 at six digits and add their own digits after it.
Frequently asked questions
What does HS code 3921.11 cover?
HS code 3921.11 covers cellular, of polymers of styrene.
Which heading and chapter is HS code 3921.11 in?
HS code 3921.11 is in heading 39.21 (other plates, sheets, film, foil and strip, of plastics) in chapter 39 (plastics and articles thereof).
Where are goods of heading 39.21 classified when 3921.11 doesn’t fit?
Other goods of heading 39.21 are classified under 3921.12 (cellular, of polymers of vinyl chloride), 3921.13 (cellular, of polyurethanes), 3921.14 (cellular, of regenerated cellulose), 3921.19 (cellular, of other plastics) or 1 other.
Sources and updates
The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.
This page was last updated on 13 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.