# HS heading 35.07: Enzymes; prepared enzymes not elsewhere specified or included

> HS heading 35.07 covers enzymes; prepared enzymes not elsewhere specified or included. It is in chapter 35 (albuminoidal substances; modified starches; glues; enzymes). It is split into 2 subheadings: 3507.10 (rennet and concentrates thereof) and 3507.90 (other). National tariff lines under heading 35.07 are live on border.bot for the United States (4 lines, also used by 1 other country).

Source: https://border.bot/hs-codes/3507
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 35](https://border.bot/hs-codes/35) / [35.07](https://border.bot/hs-codes/3507)

## Key facts

- Heading: 35.07
- Description: Enzymes; prepared enzymes not elsewhere specified or included
- Chapter: 35: Albuminoidal substances; modified starches; glues; enzymes
- Subheadings: 2
- Edition: HS2022

## What this code covers

HS heading 35.07 covers enzymes; prepared enzymes not elsewhere specified or included.

It is split into 2 subheadings: 3507.10 (rennet and concentrates thereof) and 3507.90 (other).

- [3507.10](https://border.bot/hs-codes/350710) Rennet and concentrates thereof
- [3507.90](https://border.bot/hs-codes/350790) Other

## What it doesn’t cover

Other goods of chapter 35 are classified in its other 6 headings, listed below.

- [35.01](https://border.bot/hs-codes/3501) Casein, caseinates and other casein derivatives; casein glues
- [35.02](https://border.bot/hs-codes/3502) Albumins (including concentrates of two or more whey proteins, containing by weight more than 80 % whey proteins, calculated on the dry matter), albuminates and other albumin derivatives
- [35.03](https://border.bot/hs-codes/3503) Gelatin (including gelatin in rectangular (including square) sheets, whether or not surface-worked or coloured) and gelatin derivatives; isinglass; other glues of animal origin, excluding casein glues of heading 35.01
- [35.04](https://border.bot/hs-codes/3504) Peptones and their derivatives; other protein substances and their derivatives, not elsewhere specified or included; hide powder, whether or not chromed
- [35.05](https://border.bot/hs-codes/3505) Dextrins and other modified starches (for example, pregelatinised or esterified starches); glues based on starches, or on dextrins or other modified starches
- [35.06](https://border.bot/hs-codes/3506) Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1kg

## How it is structured

Heading 35.07 is one of 7 headings in chapter 35. Its first two digits, 35, are the chapter; the next two, 07, number the heading within it. Its subheadings add two more digits (3507.10, 3507.90).

## In other countries

National tariff lines under heading 35.07 are live on border.bot for the United States (4 lines, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/35): 4 lines, used by 1 other country

- Previous heading: [35.06](https://border.bot/hs-codes/3506) Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1kg
- Next heading: [36.01](https://border.bot/hs-codes/3601) Propellent powders

## Frequently asked questions

### What does HS heading 35.07 cover?

HS heading 35.07 covers enzymes; prepared enzymes not elsewhere specified or included.

### Which chapter is HS heading 35.07 in?

HS heading 35.07 is in chapter 35 (albuminoidal substances; modified starches; glues; enzymes).

### How many subheadings does HS heading 35.07 have?

HS heading 35.07 has 2 subheadings: 3507.10 (rennet and concentrates thereof) and 3507.90 (other).

### Which countries’ tariffs list national lines under HS heading 35.07?

National tariff lines under heading 35.07 are live on border.bot for the United States (4 lines, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Machine-readable: https://border.bot/hs-codes/3507.json