# HS code 3507.10: Rennet and concentrates thereof

> HS code 3507.10 covers rennet and concentrates thereof. It sits in heading 35.07 (enzymes; prepared enzymes not elsewhere specified or included) in chapter 35 (albuminoidal substances; modified starches; glues; enzymes). Other goods of heading 35.07 are classified under 3507.90 (other). National tariff lines under 3507.10 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/350710
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) / [3507.10](https://border.bot/hs-codes/350710)

## Key facts

- HS code: 3507.10
- Covers: Rennet and concentrates thereof
- Heading: [35.07: Enzymes; prepared enzymes not elsewhere specified or included](https://border.bot/hs-codes/3507)
- Chapter: [35: Albuminoidal substances; modified starches; glues; enzymes](https://border.bot/hs-codes/35)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/350710)

## What this code covers

HS code 3507.10 covers rennet and concentrates thereof.

The legal text of the subheading is “Rennet and concentrates thereof”, in HS2022.

## What it doesn’t cover

Other goods of heading 35.07 are classified under 3507.90 (other).

- [3507.90](https://border.bot/hs-codes/350790) Other

## How it is structured

3507.10 is a six-digit subheading. Its first two digits, 35, are the chapter; the first four, 3507, are heading 35.07; the last two, 10, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 35: Albuminoidal substances; modified starches; glues; enzymes
- Heading 35.07: Enzymes; prepared enzymes not elsewhere specified or included
- Subheading 3507.10: Rennet and concentrates thereof

## In other countries

National tariff lines under 3507.10 are live on border.bot for the United States (1 line, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/350710): 1 line, used by 1 other country

- Previous subheading: [3506.99](https://border.bot/hs-codes/350699) Other: Other
- Next subheading: [3507.90](https://border.bot/hs-codes/350790) Other

## Frequently asked questions

### What does HS code 3507.10 cover?

HS code 3507.10 covers rennet and concentrates thereof.

### Which heading and chapter is HS code 3507.10 in?

HS code 3507.10 is in heading 35.07 (enzymes; prepared enzymes not elsewhere specified or included) in chapter 35 (albuminoidal substances; modified starches; glues; enzymes).

### Where are goods of heading 35.07 classified when 3507.10 doesn’t fit?

Other goods of heading 35.07 are classified under 3507.90 (other).

### Which countries’ tariffs list national lines under HS code 3507.10?

National tariff lines under 3507.10 are live on border.bot for the United States (1 line, 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/350710.json