# United States tariff line 3824.99.32.00: Of hydrosulfite compounds, of sulfoxylate compounds, or of both

> In the United States tariff, line 3824.99.32.00 covers mixtures of two or more inorganic compounds, of hydrosulfite compounds, of sulfoxylate compounds, or of both. The general (MFN) duty rate is 6.5%. It falls under HS subheading 3824.99 in heading 38.24 (chapter 38).

Source: https://border.bot/countries/united-states/hs-codes/3824993200
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 38](https://border.bot/countries/united-states/hs-codes/38) / [3824.99](https://border.bot/countries/united-states/hs-codes/382499) / [3824.99.32.00](https://border.bot/countries/united-states/hs-codes/3824993200)

## Key facts

- Tariff line: 3824.99.32.00
- Covers: Mixtures of two or more inorganic compounds, of hydrosulfite compounds, of sulfoxylate compounds, or of both
- Duty (MFN): 6.5%
- Preferential rates: From free (17 programmes or origins)
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [3824.99](https://border.bot/hs-codes/382499)

## What this line covers

In the United States tariff, line 3824.99.32.00 covers mixtures of two or more inorganic compounds, of hydrosulfite compounds, of sulfoxylate compounds, or of both.

Its legal text is “Of hydrosulfite compounds, of sulfoxylate compounds, or of both”, read under “Other”, “Other”, “Other” and “Mixtures of two or more inorganic compounds”.

## 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: Mixtures of two or more inorganic compounds
- Line 3824.99.32.00: Of hydrosulfite compounds, of sulfoxylate compounds, or of both

## Duty

The general (MFN) duty rate is 6.5%.

Duty-free entry applies to goods that qualify under 16 programmes, and to goods from a group of origins (origin group A*).

- 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)

## In other countries

No other national tariff on border.bot has live lines under 3824.99 yet.

- [The Harmonized System text for 3824.99](https://border.bot/hs-codes/382499)

## Other lines under 3824.99

- [3824.99.11.00](https://border.bot/countries/united-states/hs-codes/3824991100) In the form of ingots
- [3824.99.19.00](https://border.bot/countries/united-states/hs-codes/3824991900) Other
- [3824.99.21.00](https://border.bot/countries/united-states/hs-codes/3824992100) Consisting wholly of substances found naturally in coal tar, whether obtained from coal tar or other source
- [3824.99.25.00](https://border.bot/countries/united-states/hs-codes/3824992500) Aqueous mixtures of triphenyl sulfonium chloride, diphenyl (4-phenylthio)phenyl sulfonium chloride and (thiodi-4,1- phenylene)bis(diphenyl sulfonium) dichloride
- [3824.99.26.00](https://border.bot/countries/united-states/hs-codes/3824992600) Benzene, 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
- [3824.99.29.00](https://border.bot/countries/united-states/hs-codes/3824992900) Other
- [3824.99.31.00](https://border.bot/countries/united-states/hs-codes/3824993100) Of bismuth
- [3824.99.33.00](https://border.bot/countries/united-states/hs-codes/3824993300) Of mercury
- [3824.99.34.00](https://border.bot/countries/united-states/hs-codes/3824993400) Of molybdenum
- [3824.99.35.00](https://border.bot/countries/united-states/hs-codes/3824993500) Of tungsten
- [3824.99.36.00](https://border.bot/countries/united-states/hs-codes/3824993600) Of vanadium
- [3824.99.39.10](https://border.bot/countries/united-states/hs-codes/3824993910) Of lithium nickel cobalt manganese oxides
- [3824.99.39.90](https://border.bot/countries/united-states/hs-codes/3824993990) Other
- [3824.99.41.40](https://border.bot/countries/united-states/hs-codes/3824994140) Mixtures of fatty acid esters
- [3824.99.41.90](https://border.bot/countries/united-states/hs-codes/3824994190) Other
- [3824.99.49.00](https://border.bot/countries/united-states/hs-codes/3824994900) Mixtures that are in whole or in part of hydrocarbons derived in whole or in part from petroleum, shale oil or natural gas
- [3824.99.50.00](https://border.bot/countries/united-states/hs-codes/3824995000) Chlorinated but not otherwise halogenated
- [3824.99.55.00](https://border.bot/countries/united-states/hs-codes/3824995500) Other
- [3824.99.70.00](https://border.bot/countries/united-states/hs-codes/3824997000) Mixtures 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
- [3824.99.75.10](https://border.bot/countries/united-states/hs-codes/3824997510) Naphthenic acids
- [3824.99.75.50](https://border.bot/countries/united-states/hs-codes/3824997550) Other
- [3824.99.93.10](https://border.bot/countries/united-states/hs-codes/3824999310) Containing C11 or lower alcohols only
- [3824.99.93.20](https://border.bot/countries/united-states/hs-codes/3824999320) Containing C12 or higher alcohols only
- [3824.99.93.30](https://border.bot/countries/united-states/hs-codes/3824999330) Other
- [3824.99.93.61](https://border.bot/countries/united-states/hs-codes/3824999361) Mixtures 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
- [3824.99.93.86](https://border.bot/countries/united-states/hs-codes/3824999386) Mixtures of a kind containing magnesium used as a desulfurization reagent
- [3824.99.93.97](https://border.bot/countries/united-states/hs-codes/3824999397) Other

- Previous line: [3824.99.31.00](https://border.bot/countries/united-states/hs-codes/3824993100) Of bismuth
- Next line: [3824.99.33.00](https://border.bot/countries/united-states/hs-codes/3824993300) Of mercury

## Frequently asked questions

### What does tariff line 3824.99.32.00 cover in the United States tariff?

In the United States tariff, line 3824.99.32.00 covers mixtures of two or more inorganic compounds, of hydrosulfite compounds, of sulfoxylate compounds, or of both.

### What is the general (MFN) duty on 3824.99.32.00 in the United States?

The general (MFN) duty rate is 6.5%.

### Which preferential rates apply to 3824.99.32.00?

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:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/3824993200.json