United States tariff line 3824.99.75.50: Other
Last updated
Key facts
- Tariff line
- 3824.99.75.50
- Covers
- Naphthenic acids, their water-insoluble salts and their esters
- Duty (MFN)
- 3.7%
- Preferential rates
- From free (17 programmes or origins)
- Additional duties
- None recorded
- Restrictions
- None recorded
- Tariff
- United States
- HS subheading
- 3824.99
Summary
In the United States tariff, line 3824.99.75.50 covers naphthenic acids, their water-insoluble salts and their esters. The general (MFN) duty rate is 3.7%. It falls under HS subheading 3824.99 in heading 38.24 (chapter 38).
What this line covers
In the United States tariff, line 3824.99.75.50 covers naphthenic acids, their water-insoluble salts and their esters.
Its legal text is “Other”, read under “Other”, “Other”, “Other”, “Other”, “Other” and “Naphthenic acids, their water-insoluble salts and their esters”.
How it is structured
It falls under HS subheading 3824.99 in heading 38.24 (chapter 38). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.
- Chapter 38
- Miscellaneous chemical products
- Heading 38.24
- Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included
- Subheading 3824.99
- Other
- Within the subheading
- Other
- Within the subheading
- Other
- Within the subheading
- Other
- Within the subheading
- Other
- Within the subheading
- Naphthenic acids, their water-insoluble salts and their esters
- Line 3824.99.75.50
- Other
Duty
The general (MFN) duty rate is 3.7%.
The rate is published on 3824.99.75.
Duty-free entry applies to goods that qualify under 16 programmes, and to goods from a group of origins (origin group A).
| Preferential rate | Programme or origin |
|---|---|
| Free | a group of origins (origin group A) (A) |
| Free | United States-Australia Free Trade Agreement (AU) |
| Free | United States-Bahrain Free Trade Agreement Implementation Act (BH) |
| Free | United States-Chile Free Trade Agreement (CL) |
| Free | United States-Colombia Trade Promotion Agreement Implementation Act (CO) |
| Free | African Growth and Opportunity Act (D) |
| Free | Caribbean Basin Economic Recovery Act (E) |
| Free | United States-Israel Free Trade Area (IL) |
| Free | United States-Jordan Free Trade Area Implementation Act (JO) |
| Free | United States-Korea Free Trade Agreement Implementation Act (KR) |
| Free | United States-Morocco Free Trade Agreement Implementation Act (MA) |
| Free | United States-Oman Free Trade Agreement Implementation Act (OM) |
| Free | Dominican Republic-Central America-United States Free Trade Agreement (P) |
| Free | United States-Panama Trade Promotion Agreement Implementation Act (PA) |
| Free | United States-Peru Trade Promotion Agreement Implementation Act (PE) |
| Free | United States-Mexico-Canada Agreement (S) |
| Free | United States-Singapore Free Trade Agreement (SG) |
Other lines under 3824.99
- 3824.99.11.00In the form of ingots
- 3824.99.19.00Other
- 3824.99.21.00Consisting wholly of substances found naturally in coal tar, whether obtained from coal tar or other source
- 3824.99.25.00Aqueous mixtures of triphenyl sulfonium chloride, diphenyl (4-phenylthio)phenyl sulfonium chloride and (thiodi-4,1- phenylene)bis(diphenyl sulfonium) dichloride
- 3824.99.26.00Benzene, 2,4-diisocyanate-1,3,5-tris(1- methylethyl) homopolymer; 5-Fluoro-2-methyl-1-[[4-(methylsulfinyl)- phenyl]methylene]-1H-indene;Mixtures of dimethyl phthalate, t-butanol, hydrogen peroxide, and sodium salicylate; andMixtures containing derivatives of N-[4-(2- hydroxy-3-phenoxypropoxy)phenyl]- acetamide
- 3824.99.29.00Other
- 3824.99.31.00Of bismuth
- 3824.99.32.00Of hydrosulfite compounds, of sulfoxylate compounds, or of both
- 3824.99.33.00Of mercury
- 3824.99.34.00Of molybdenum
- 3824.99.35.00Of tungsten
- 3824.99.36.00Of vanadium
- 3824.99.39.10Of lithium nickel cobalt manganese oxides
- 3824.99.39.90Other
- 3824.99.41.40Mixtures of fatty acid esters
- 3824.99.41.90Other
- 3824.99.49.00Mixtures that are in whole or in part of hydrocarbons derived in whole or in part from petroleum, shale oil or natural gas
- 3824.99.50.00Chlorinated but not otherwise halogenated
- 3824.99.55.00Other
- 3824.99.70.00Mixtures of dibromo neopentyl glycol; Polydibromophenylene oxide; Tetrabromobisphenol-A-carbonate oligomers; and Electroplating chemical and electroless plating solutions and other materials for printed circuit boards, plastics and metal finishings
- 3824.99.75.10Naphthenic acids
- 3824.99.93.10Containing C11 or lower alcohols only
- 3824.99.93.20Containing C12 or higher alcohols only
- 3824.99.93.30Other
- 3824.99.93.61Mixtures consisting mainly of chemicals containing a phosphorus atom to which is bonded one methyl, ethyl, n-propyl or isopropyl group, but no other carbon atoms
- 3824.99.93.86Mixtures of a kind containing magnesium used as a desulfurization reagent
- 3824.99.93.97Other
In other countries
No other national tariff on border.bot has live lines under 3824.99 yet.
Frequently asked questions
What does tariff line 3824.99.75.50 cover in the United States tariff?
In the United States tariff, line 3824.99.75.50 covers naphthenic acids, their water-insoluble salts and their esters.
What is the general (MFN) duty on 3824.99.75.50 in the United States?
The general (MFN) duty rate is 3.7%. The rate is published on 3824.99.75.
Which preferential rates apply to 3824.99.75.50?
Duty-free entry applies to goods that qualify under 16 programmes: the United States-Australia Free Trade Agreement, the United States-Bahrain Free Trade Agreement Implementation Act, the United States-Chile Free Trade Agreement, the United States-Colombia Trade Promotion Agreement Implementation Act, African Growth and Opportunity Act, Caribbean Basin Economic Recovery Act, the United States-Israel Free Trade Area, the United States-Jordan Free Trade Area Implementation Act, the United States-Korea Free Trade Agreement Implementation Act, the United States-Morocco Free Trade Agreement Implementation Act, the United States-Oman Free Trade Agreement Implementation Act, the Dominican Republic-Central America-United States Free Trade Agreement, the United States-Panama Trade Promotion Agreement Implementation Act, the United States-Peru Trade Promotion Agreement Implementation Act, the United States-Mexico-Canada Agreement and the United States-Singapore Free Trade Agreement, and to goods from a group of origins (origin group A).
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: