HS Code for Enzymes

The classification of enzymes under HS code 3507.90 is determined by the General Rules of Interpretation (GRI) and the specific notes of Chapter 35. Chapter 35 covers albuminoidal substances, modified starches, glues, and enzymes. Heading 3507 is specifically dedicated to enzymes and prepared enzymes that are not elsewhere specified or included in the nomenclature. Subheading 3507.90 serves as the residual category for all enzymes other than rennet and its concentrates. To be classified here, the product must be a protein substance that acts as a biological catalyst. This includes pure enzymes as well as prepared enzymes, which are enzymes with added substances like stabilizers, activators, or carriers, provided these additions do not transform the product into a medicament or a food preparation. The classification process requires verifying that the enzyme is not a culture of micro-organisms, which would instead fall under heading 3002. Furthermore, if the enzyme is put up in measured doses or packaged for retail sale for therapeutic use, it must be moved to Chapter 30. Industrial enzymes used in the textile, leather, and food industries are the primary occupants of this code.

Products Included

• Amylases and amylolytic preparations
• Proteases (papain, bromelain, pepsin)
• Lipases used in detergent manufacturing
• Cellulases for textile processing
• Glucose isomerase for high-fructose corn syrup production
• Invertase and pectinases

Common Misclassification

Enzymes are frequently misclassified under heading 3004 (medicaments) when they are intended for health use but not yet packaged for retail sale. Conversely, they are often confused with heading 2934 for nucleic acids or heading 3002 for cultures of micro-organisms. It is critical to distinguish between the enzyme itself (3507.90) and the organism that produces it (3002.90).

FAQ

What is the HS code for Enzymes?

The HS code for enzymes, other than rennet and its concentrates, is 3507.90.

Are food-grade enzymes classified differently?

Generally, no; if they are prepared enzymes used as processing aids, they remain in 3507.90. However, if they are sold as finished food supplements, they may fall under 2106.90.