Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
HTS heading 2837: Cyanides, cyanide oxides and complex cyanides
9 numbered lines under heading 2837, including 6 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 |
|---|---|---|---|---|---|
| 2837 | Cyanides, cyanide oxides and complex cyanides: | ||||
| Cyanides and cyanide oxides: | |||||
| 2837.11.00.00 | Of sodium | kg | Free | Free | |
| 2837.19.01 | OtherNote: See 9903.90.08. | Free | Free | ||
| 2837.19.01.10 | Potassium cyanide | kg | |||
| 2837.19.01.15 | Calcium cyanide | kg | |||
| 2837.19.01.25 | Other | kg | |||
| 2837.20 | Complex cyanides: | ||||
| 2837.20.10.00 | Potassium ferricyanide | kg | 1.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 5.1% |
| 2837.20.51.00 | Other | kg | 1.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 8.5% |
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.