Key facts
- HS subheading
- 2921.29
- Duty (MFN)
- 6.5%
- National lines
- 4
- Tariff
- United States
- Chapter
- 29: Organic chemicals
Summary
The United States tariff splits HS 2921.29 (acyclic polyamines and their derivatives; salts thereof: Other) into 4 national lines: 2921.29.00.10 (tetraethylene pentamine), 2921.29.00.20 (triethylenetetramine), 2921.29.00.30 (diethylenetriamine) and 2921.29.00.55 (other). The general (MFN) duty is 6.5% on all 4 lines.
United States lines under 2921.29
The United States tariff splits HS 2921.29 (acyclic polyamines and their derivatives; salts thereof: Other) into 4 national lines: 2921.29.00.10 (tetraethylene pentamine), 2921.29.00.20 (triethylenetetramine), 2921.29.00.30 (diethylenetriamine) and 2921.29.00.55 (other).
The general (MFN) duty is 6.5% on all 4 lines.
- 2921.29.00.10Tetraethylene pentamineDuty: 6.5%
- 2921.29.00.20TriethylenetetramineDuty: 6.5%
- 2921.29.00.30DiethylenetriamineDuty: 6.5%
- 2921.29.00.55OtherDuty: 6.5%
In other countries
No other national tariff on border.bot has live lines under 2921.29 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 2921.29?
The United States tariff splits HS 2921.29 (acyclic polyamines and their derivatives; salts thereof: Other) into 4 national lines: 2921.29.00.10 (tetraethylene pentamine), 2921.29.00.20 (triethylenetetramine), 2921.29.00.30 (diethylenetriamine) and 2921.29.00.55 (other).
What is the duty on HS 2921.29 in the United States?
The general (MFN) duty is 6.5% on all 4 lines.
Sources and updates
The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
This page was last updated on 9 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.
Official source files: