Chapter 31: Fertilizers
HTS heading 3104: Mineral or chemical fertilizers, potassic
6 numbered lines under heading 3104, including 4 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 |
|---|---|---|---|---|---|
| 3104 | Mineral or chemical fertilizers, potassic: | ||||
| 3104.20.00 | Potassium chloride | Free | Free | ||
| 3104.20.00.10 | Containing not more than 62 percent by weight of potassium oxide (K2O) | t | |||
| 3104.20.00.50 | Containing more than 62 percent by weight of potassium oxide (K2O) | t | |||
| 3104.30.00.00 | Potassium sulfate | t | Free | Free | |
| 3104.90.01.00 | Other | t | Free | Free |
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.