# United States tariff line 2839.11.00.00: Sodium metasilicates

> In the United States tariff, line 2839.11.00.00 covers silicates; commercial alkali metal silicates, of sodium, sodium metasilicates. The general (MFN) duty rate is 1.1%. It falls under HS subheading 2839.11 in heading 28.39 (chapter 28).

Source: https://border.bot/countries/united-states/hs-codes/2839110000
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 28](https://border.bot/countries/united-states/hs-codes/28) / [2839.11](https://border.bot/countries/united-states/hs-codes/283911) / [2839.11.00.00](https://border.bot/countries/united-states/hs-codes/2839110000)

## Key facts

- Tariff line: 2839.11.00.00
- Covers: Silicates; commercial alkali metal silicates, of sodium, sodium metasilicates
- Duty (MFN): 1.1%
- Preferential rates: From free (17 programmes or origins)
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2839.11](https://border.bot/hs-codes/283911)

## What this line covers

In the United States tariff, line 2839.11.00.00 covers silicates; commercial alkali metal silicates, of sodium, sodium metasilicates.

Its legal text is “Sodium metasilicates”, read under “Of sodium”.

Products commonly classified here include Sodium oxosilanediolate hydrate (2:1:9) (Sodium metasilicate nonahydrate) (CAS No. 13517-24-3) (border.bot’s search keywords, not legal text).

## How it is structured

It falls under HS subheading 2839.11 in heading 28.39 (chapter 28). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
- Heading 28.39: Silicates; commercial alkali metal silicates
- Subheading 2839.11: Of sodium
- Line 2839.11.00.00: Sodium metasilicates

## Duty

The general (MFN) duty rate is 1.1%.

Duty-free entry applies to goods that qualify under 16 programmes, and to goods from a group of origins (origin group A).

- Free: a group of origins (origin group A) (A)
- Free: United States-Australia Free Trade Agreement (AU)
- Free: United States-Bahrain Free Trade Agreement Implementation Act (BH)
- Free: United States-Chile Free Trade Agreement (CL)
- Free: United States-Colombia Trade Promotion Agreement Implementation Act (CO)
- Free: African Growth and Opportunity Act (D)
- Free: Caribbean Basin Economic Recovery Act (E)
- Free: United States-Israel Free Trade Area (IL)
- Free: United States-Jordan Free Trade Area Implementation Act (JO)
- Free: United States-Korea Free Trade Agreement Implementation Act (KR)
- Free: United States-Morocco Free Trade Agreement Implementation Act (MA)
- Free: United States-Oman Free Trade Agreement Implementation Act (OM)
- Free: Dominican Republic-Central America-United States Free Trade Agreement (P)
- Free: United States-Panama Trade Promotion Agreement Implementation Act (PA)
- Free: United States-Peru Trade Promotion Agreement Implementation Act (PE)
- Free: United States-Mexico-Canada Agreement (S)
- Free: United States-Singapore Free Trade Agreement (SG)

## In other countries

No other national tariff on border.bot has live lines under 2839.11 yet.

- [The Harmonized System text for 2839.11](https://border.bot/hs-codes/283911)

- Previous line: [2837.20.51.00](https://border.bot/countries/united-states/hs-codes/2837205100) Other
- Next line: [2839.19.00.00](https://border.bot/countries/united-states/hs-codes/2839190000) Other

## Frequently asked questions

### What does tariff line 2839.11.00.00 cover in the United States tariff?

In the United States tariff, line 2839.11.00.00 covers silicates; commercial alkali metal silicates, of sodium, sodium metasilicates.

### What is the general (MFN) duty on 2839.11.00.00 in the United States?

The general (MFN) duty rate is 1.1%.

### Which preferential rates apply to 2839.11.00.00?

Duty-free entry applies to goods that qualify under 16 programmes: the United States-Australia Free Trade Agreement, the United States-Bahrain Free Trade Agreement Implementation Act, the United States-Chile Free Trade Agreement, the United States-Colombia Trade Promotion Agreement Implementation Act, African Growth and Opportunity Act, Caribbean Basin Economic Recovery Act, the United States-Israel Free Trade Area, the United States-Jordan Free Trade Area Implementation Act, the United States-Korea Free Trade Agreement Implementation Act, the United States-Morocco Free Trade Agreement Implementation Act, the United States-Oman Free Trade Agreement Implementation Act, the Dominican Republic-Central America-United States Free Trade Agreement, the United States-Panama Trade Promotion Agreement Implementation Act, the United States-Peru Trade Promotion Agreement Implementation Act, the United States-Mexico-Canada Agreement and the United States-Singapore Free Trade Agreement, and to goods from a group of origins (origin group A).

## 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/2839110000.json