# United States tariff line 4005.10.00.00: Compounded with carbon black or silica

> In the United States tariff, line 4005.10.00.00 covers compounded with carbon black or silica. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 4005.10 in heading 40.05 (chapter 40).

Source: https://border.bot/countries/united-states/hs-codes/4005100000
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 40](https://border.bot/countries/united-states/hs-codes/40) / [4005.10](https://border.bot/countries/united-states/hs-codes/400510) / [4005.10.00.00](https://border.bot/countries/united-states/hs-codes/4005100000)

## Key facts

- Tariff line: 4005.10.00.00
- Covers: Compounded with carbon black or silica
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [4005.10](https://border.bot/hs-codes/400510)

## What this line covers

In the United States tariff, line 4005.10.00.00 covers compounded with carbon black or silica.

Its legal text is “Compounded with carbon black or silica”.

## How it is structured

It falls under HS subheading 4005.10 in heading 40.05 (chapter 40). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 40: Rubber and articles thereof
- Heading 40.05: Compounded rubber, unvulcanized, in primary forms or in plates, sheets or strip
- Line 4005.10.00.00: Compounded with carbon black or silica

## Duty

Goods under this line enter free of general (MFN) duty.

## In other countries

No other national tariff on border.bot has live lines under 4005.10 yet.

- [The Harmonized System text for 4005.10](https://border.bot/hs-codes/400510)

- Previous line: [4004.00.00.00](https://border.bot/countries/united-states/hs-codes/4004000000) Waste, parings and scrap of rubber (other than hard rubber) and powders and granules obtained therefrom
- Next line: [4005.20.00.00](https://border.bot/countries/united-states/hs-codes/4005200000) Solutions; dispersions other than those of subheading 4005.10

## Frequently asked questions

### What does tariff line 4005.10.00.00 cover in the United States tariff?

In the United States tariff, line 4005.10.00.00 covers compounded with carbon black or silica.

### What is the general (MFN) duty on 4005.10.00.00 in the United States?

Goods under this line enter free of general (MFN) duty.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 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.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/4005100000.json