Chapter 31: Fertilizers
HTS heading 3105: Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium; other fertilizers;…
13 numbered lines under heading 3105, including 10 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.
| HTS code | Description | Unit | General | Special | Column 2 |
|---|---|---|---|---|---|
| 3105 | Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium; other fertilizers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg: | ||||
| 3105.10.00.00 | Products of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg | kg | Free | Free | |
| 3105.20.00.00 | Mineral or chemical fertilizers containing the three fertilizing elements nitrogen, phosphorus and potassium | t | Free | Free | |
| 3105.30.00.00 | Diammonium hydrogenorthophosphate (Diammonium phosphate) | t | Free | Free | |
| 3105.40.00 | Ammonium dihydrogenorthophosphate (Monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (Diammonium phosphate) | Free | Free | ||
| 3105.40.00.10 | Ammonium dihydrogenorthophosphate (Monoammonium phosphate) | t | |||
| 3105.40.00.50 | Other | t | |||
| Other mineral or chemical fertilizers containing the two fertilizing elements nitrogen and phosphorus: | |||||
| 3105.51.00.00 | Containing nitrates and phosphates | t | Free | Free | |
| 3105.59.00.00 | Other | t | Free | Free | |
| 3105.60.00.00 | Mineral or chemical fertilizers containing the two fertilizing elements phosphorus and potassium | t | Free | Free | |
| 3105.90.00 | Other | Free | Free | ||
| 3105.90.00.10 | Potassium nitrate-sodium nitrate mixtures | t | |||
| 3105.90.00.50 | Other | t |
Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.
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Request a free auditSource: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.