Chapter 38: Miscellaneous chemical products
HTS heading 3815: Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included
11 numbered lines under heading 3815, including 8 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 |
|---|---|---|---|---|---|
| 3815 | Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included: | ||||
| Supported catalysts: | |||||
| 3815.11.00.00 | With nickel or nickel compounds as the active substance | kg | Free | 25% | |
| 3815.12.00 | With precious metal or precious metal compounds as the active substance | Free | 25% | ||
| 3815.12.00.10 | With platinum group metals as the active substance | kg | |||
| 3815.12.00.90 | Other | kg | |||
| 3815.19.00.00 | OtherNote: See 9903.90.08. | kg | Free | 25% | |
| 3815.90 | Other: | ||||
| Consisting wholly of inorganic substances: | |||||
| 3815.90.10.00 | Of bismuth, of tungsten or of vanadium | kg | 6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 40% |
| 3815.90.20.00 | Of mercury or of molybdenum | kg | 2.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 18% |
| 3815.90.30.00 | Other | kg | Free | 25% | |
| 3815.90.50.00 | Other | kg | 5% | Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG) | 25% |
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.