Chapter 35: Albuminoidal substances; modified starches; glues; enzymes
HTS heading 3507: Enzymes; prepared enzymes not elsewhere specified or included
7 numbered lines under heading 3507, 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 |
|---|---|---|---|---|---|
| 3507 | Enzymes; prepared enzymes not elsewhere specified or included: | ||||
| 3507.10.00.00 | Rennet and concentrates thereof | kg | Free | Free | |
| 3507.90 | Other: | ||||
| 3507.90.20.00 | Pencillin G amidase | kg | Free | 25% | |
| 3507.90.70 | OtherNote: See 9903.90.08. | Free | 25% | ||
| 3507.90.70.10 | Enzymes ā proteases, amylases, lipases, cellulases, pectinases, oxidases, and catalases | kg | |||
| 3507.90.70.80 | Other | kg |
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.