3102.29.00.00Ammonium sulfate
Also written 3102290000 and 3102.29.0000
HTS Code 3102.29.00.00 covers any article best defined as Products of the Chemical or Allied IndustriesFertilizersMineral or chemical fertilizers, nitrogenous:Ammonium sulfate; double salts and mixtures of ammonium sulfate and ammonium nitrate:Other in the Harmonized Tariff Schedule.
As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from China pay 25% in duties: a duty-free base rate plus Section 301 – China (25%).
From China, the total duty on 3102.29.00.00 last changed on Feb 24, 2026, from 35% to 25%. It has changed 1 time since Nov 17, 2025.
Estimated Duty on 3102.29.00.00
$10,000.00 by ocean, entered Oct 26, 2026
- Total duty
- 25%
- $2,500.00 on this shipment
- Fees
- 0.47%
- MPF + HMF · $47.14
- Duty + fees
- 25.47%
- Payable to CBP
- Landed cost
- $12,547.14
- On $10,000.00 customs value
- Section 301 – China25%
- Customs fees0.47%
Chapter 99 lines9903.88.03Section 301 China: List 3
3 exemptions could lower this
Check them against your real shipment details.
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Base Duty Rates for 3102.29.00.00
From the Harmonized Tariff Schedule
- General Rate of Duty
- Free
- Special Rate of Duty
- —
- Column 2 (Non-NTR)
- Free
- Units of Quantity
- t
- China25%
- Mexico0%
- Canada0%
- Vietnam0%
- Germany0%
Tariff updates
Recent US tariff actions that name 3102.29.00.00 or its heading.
- Jul 21, 2026 · CBP guidanceUSTR imposes 25% Section 301 tariff on goods of Brazil, with exemptions, from July 22, 2026
- Nov 26, 2025 · CBP guidanceUS exempts certain Brazilian agricultural products from 40% IEEPA tariff
- Nov 25, 2025 · CBP guidanceUS exempts certain agricultural products from IEEPA reciprocal tariffs
US Import Duty on HTS 3102.29.00.00 by Country of Origin
As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from China pay 25% in duties: a duty-free base rate plus Section 301 – China (25%). Of the 20 largest sources of US imports, the lowest total is 0%, from Mexico, Canada and 17 more.
| Country of origin | Base rate | Additional tariffs | Total duty |
|---|---|---|---|
| China | Free |
| 25% |
| Mexico | Free | None | 0% |
| Canada | Free | None | 0% |
| Vietnam | Free | None | 0% |
| Germany | Free | None | 0% |
| Japan | Free | None | 0% |
| South Korea | Free | None | 0% |
| Taiwan | Free | None | 0% |
| India | Free | None | 0% |
| Ireland | Free | None | 0% |
| Italy | Free | None | 0% |
| Switzerland | Free | None | 0% |
| Thailand | Free | None | 0% |
| Malaysia | Free | None | 0% |
| United Kingdom | Free | None | 0% |
| France | Free | None | 0% |
| Indonesia | Free | None | 0% |
| Brazil | Free | None | 0% |
| Bangladesh | Free | None | 0% |
| Cambodia | Free | None | 0% |
Duty from each country, in words
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from China pay 25% in duties: a duty-free base rate plus Section 301 – China (25%).
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Mexico pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Canada pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Vietnam pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Germany pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Japan pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from South Korea pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Taiwan pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from India pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Ireland pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Italy pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Switzerland pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Thailand pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Malaysia pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from United Kingdom pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from France pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Indonesia pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Brazil pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Bangladesh pay a duty-free base rate, with no additional tariffs.
- As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Cambodia pay a duty-free base rate, with no additional tariffs.
Duties on goods entered Oct 26, 2026 at the general rate (Column 2 where it applies), with tariff data verified through 2026 HTS Revision 20. Totals are before customs fees (MPF, HMF) and any antidumping or countervailing duties (AD/CVD); with a free account, the calculator checks the AD/CVD cases that may cover your import. Some tariffs and exemptions depend on details such as metal content or end use, which the calculator asks about. See US tariffs for every country.
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Its rate today, if a new 10% tariff were added
Top Origins: Countries the US Imports HTS 3102.29.00.00 From
In 2025 the US imported $2M of ammonium sulfate (HTS 3102.29.00.00), down 35% on 2024, mostly from Germany (38%), Canada (26%) and Dominican Republic (22%). Each country's total duty today is shown beside its imports.
| Country of origin | US imports, 2025 | Share | vs 2024 | Total duty today |
|---|---|---|---|---|
| Germany | $827K | 38% | 7% | 0% |
| Canada | $570K | 26% | 39% | 0% |
| Dominican Republic | $474K | 22% | 24% | 0% |
| Netherlands | $292K | 13% | 68% | 0% |
Source: U.S. Census Bureau, general imports. Duty on a $10,000 ocean shipment entered today, before customs fees. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Relevant HTS Notes
Official USITC notes that may affect classification under HTS 3102.29.00.00.
Related CROSS Rulings for HTS 3102.29.00.00
CBP classification rulings related to 3102.29.00.00. Open a ruling to read how Customs classified a similar product.
No rulings found
No CROSS classification rulings were found for HTS code "3102.29.00".
What does HTS code 3102.29.00.00 cover?
HTS code 3102.29.00.00 covers ammonium sulfate (Other), classified under Chapter 31 (Fertilizers) in the US Harmonized Tariff Schedule. The general duty rate is Free.
What is the duty rate for HTS 3102.29.00.00?
The general (Column 1) rate of duty for HTS 3102.29.00.00 is Free. The Column 2 rate, for countries without normal trade relations, is Free. Additional Chapter 99 tariffs, such as Section 301 and Section 232, can apply on top depending on the country of origin.
What is the US tariff on ammonium sulfate (HTS 3102.29.00.00) from China?
As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from China pay 25% in duties: a duty-free base rate plus Section 301 – China (25%).
What is the US tariff on ammonium sulfate (HTS 3102.29.00.00) from Vietnam?
As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Vietnam pay a duty-free base rate, with no additional tariffs.
What is the US tariff on ammonium sulfate (HTS 3102.29.00.00) from Mexico?
As of Oct 26, 2026, US imports of ammonium sulfate (HTS 3102.29.00.00) from Mexico pay a duty-free base rate, with no additional tariffs.
Where does the US import HTS 3102.29.00.00 from?
In 2025 the US imported $2M of ammonium sulfate under HTS 3102.29.00.00, mostly from Germany (38%), Canada (26%) and Dominican Republic (22%), according to U.S. Census Bureau import data.
Which country has the lowest US duty on HTS 3102.29.00.00?
Of the 20 largest sources of US imports, the lowest total duty on HTS 3102.29.00.00 is 0%, from Mexico, Canada and 17 more, as of the tariffs in effect on 2026-10-26.
Primary Sources
The official documents behind the rates and tariffs on this page. Duties are worked out from them as of Revision 20 (2026); check the legal text before you file.