HS code 4001.21: Natural rubber in other forms, smoked sheets
Last updated
Key facts
- HS code
- 4001.21
- Covers
- Natural rubber in other forms, smoked sheets
- Edition
- HS2022
- Duty in the United States
- See its 4 lines
Summary
HS code 4001.21 covers natural rubber in other forms, smoked sheets. It sits in heading 40.01 (natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets or strip) in chapter 40 (rubber and articles thereof). Other goods of heading 40.01 are classified under 4001.10 (natural rubber latex, whether or not pre-vulcanised), 4001.22 (natural rubber in other forms, technically specified natural rubber (TSNR)), 4001.29 (natural rubber in other forms, other) and 4001.30 (balata, gutta-percha, guayule, chicle or similar natural gums). National tariff lines under 4001.21 are live on border.bot for the United States (4 lines, also used by 1 other country).
What this code covers
HS code 4001.21 covers natural rubber in other forms, smoked sheets.
The legal text of the subheading is “Natural rubber in other forms: Smoked sheets”, read under “Natural rubber in other forms”, in HS2022.
What it doesn’t cover
Other goods of heading 40.01 are classified under 4001.10 (natural rubber latex, whether or not pre-vulcanised), 4001.22 (natural rubber in other forms, technically specified natural rubber (TSNR)), 4001.29 (natural rubber in other forms, other) and 4001.30 (balata, gutta-percha, guayule, chicle or similar natural gums).
How it is structured
4001.21 is a six-digit subheading. Its first two digits, 40, are the chapter; the first four, 4001, are heading 40.01; the last two, 21, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Chapter 40
- Rubber and articles thereof
- Within the heading
- Natural rubber in other forms
- Subheading 4001.21
- Smoked sheets
In other countries
National tariff lines under 4001.21 are live on border.bot for the United States (4 lines, also used by 1 other country).
- United States4 lines, used by 1 other country
Frequently asked questions
What does HS code 4001.21 cover?
HS code 4001.21 covers natural rubber in other forms, smoked sheets.
Which heading and chapter is HS code 4001.21 in?
HS code 4001.21 is in heading 40.01 (natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets or strip) in chapter 40 (rubber and articles thereof).
Where are goods of heading 40.01 classified when 4001.21 doesn’t fit?
Other goods of heading 40.01 are classified under 4001.10 (natural rubber latex, whether or not pre-vulcanised), 4001.22 (natural rubber in other forms, technically specified natural rubber (TSNR)), 4001.29 (natural rubber in other forms, other) and 4001.30 (balata, gutta-percha, guayule, chicle or similar natural gums).
Which countries’ tariffs list national lines under HS code 4001.21?
National tariff lines under 4001.21 are live on border.bot for the United States (4 lines, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 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.