Product classification
HS code for Rennet enzyme: 3507.10
Enzymes, rennet and concentrates thereof.
Classification of rennet enzyme under HS 3507.10
Rennet and its concentrates are classified under HS code 3507.10 within the Harmonized System. Chapter 35 covers albuminoidal substances, modified starches, glues, and enzymes. Heading 3507 is dedicated to enzymes and prepared enzymes not elsewhere specified or included. Within this heading, subheading 3507.10 specifically isolates rennet and its concentrates. Rennet is a complex of enzymes, primarily chymosin, produced in the stomachs of ruminant mammals. It is a critical component in the dairy industry, used to coagulate milk during the cheese-making process. The classification includes the natural animal-derived enzyme as well as microbial or vegetable-based rennet substitutes that have been prepared to perform the same enzymatic function. The determination of this code relies on the product being presented as an enzyme preparation rather than a simple food additive or a finished dairy product.
- Covers
- Natural calf rennet
- Chymosin enzyme concentrates
- Microbial rennet (fungal origin)
- Vegetable rennet preparations
- Liquid, powder, or tablet forms of rennet for industrial use
- Also under 3507.10
Chr. Hansen CHY-MAX, DSM Maxiren, Danisco Marzyme, Walco Rennet, Junket Rennet
Codes often confused with 3507.10
Common mistake. Rennet is sometimes misclassified under HS code 2106.90, which covers miscellaneous food preparations. However, because rennet is a specific enzyme, it must be classified in Chapter 35. It is also occasionally confused with HS code 3507.90, which is the residual category for "other" enzymes like pepsin, papain, or amylase. If the product is a mixture of enzymes where rennet is not the primary component, 3507.90 might apply, but pure rennet always belongs in 3507.10.
Top exporters and importers of HS 350710 (the code used for rennet enzyme), 2025
In 2025, the largest exporter of HS 350710 (the code used for rennet enzyme) in UN Comtrade data was Denmark, with 56% of world exports; the largest importer in UN Comtrade data was Denmark, with 13% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 350710, not only rennet enzyme.
Top exporters 2025 · share of world exports
- 1 Denmark $100M 56% of world exports
- 2 Germany $18M 9.8% of world exports
- 3 Italy $11M 6.0% of world exports
World total: $180M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Denmark $21M 13% of world imports
- 2 Brazil $20M 12% of world imports
- 3 Italy $15M 9.3% of world imports
World total: $165M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for rennet enzyme
Brazil classifies rennet enzyme under NCM 3507.10.00: HS 3507.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about rennet enzyme
What is the HS code for Rennet enzyme?
The HS code for Rennet enzyme is 350710 (Enzymes; rennet and concentrates thereof).
How do I classify Rennet enzyme for customs?
Rennet enzyme is classified under HS code 350710 — Enzymes; rennet and concentrates thereof. This is a 6-digit subheading level code.
What is the HS code for rennet?
The HS code for rennet and its concentrates is 3507.10.
Does this code include synthetic or microbial rennet?
Yes, as long as the product is a rennet concentrate or a prepared enzyme intended to function as rennet, it is classified under 3507.10.
Which countries are the top exporters of rennet enzyme (HS 350710)?
In 2025, the top exporters of HS 350710 (the code used for rennet enzyme) in UN Comtrade data were Denmark ($100M, 56% of world exports), Germany ($18M) and Italy ($11M). World exports came to about $180M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of rennet enzyme (HS 350710)?
In 2025, the top importers of HS 350710 (the code used for rennet enzyme) in UN Comtrade data were Denmark ($21M, 13% of world imports), Brazil ($20M) and Italy ($15M). World imports came to about $165M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Rennet enzyme the same in all countries?
The base HS code 350710 for Rennet enzyme is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for rennet enzyme in Brazil?
In Brazil, rennet enzyme (HS 350710) is classified under NCM 3507.10.00.