3507.10.00.00
Rennet and concentrates thereof
Classification path
- Enzymes; prepared enzymes not elsewhere specified or included
- Rennet and concentrates thereof
Rates of duty
- General (MFN)
- Free
- Column 2Cuba, North Korea, Russia, Belarus
- Free
- Unit of quantity
- kg
Related lines in heading 3507
About heading 3507
Enzymes; prepared enzymes not elsewhere specified or included
Heading 3507 covers enzymes and prepared enzyme products. It separates rennet, Penicillin G amidase, named enzyme classes such as proteases and amylases, and all other prepared enzymes. The listed lines carry a Free general (MFN) rate.
Full guide to heading 3507Products in this heading
- Rennet for cheese making
- Protease enzyme preparation for protein hydrolysis
- Amylase preparation for baking or brewing
- Lipase preparation for dairy or oil processing
- Cellulase preparation for textile or cleaning uses
- Pectinase preparation for juice clarification
- Catalase preparation for food processing
- Penicillin G amidase for pharmaceutical processing
Frequently asked questions
What is the HTS code for rennet?
Rennet and concentrates are classified under 3507.10.00.00, which has a general (MFN) rate of Free.
What is the duty on prepared enzymes?
The listed enzyme lines are duty free; for example, 3507.90.70.10 has a general (MFN) rate of Free. The same Free general (MFN) rate applies to 3507.90.70.80.
How do I classify a protease enzyme preparation?
A protease preparation is named in 3507.90.70.10, which has a general (MFN) rate of Free. If the product is rennet instead, use 3507.10.00.00 with its Free general (MFN) rate.
Source: USITC Harmonized Tariff Schedule, retrieved October 22, 2026.