# United States tariff lines under HS 7202.21

> The United States tariff splits HS 7202.21 (ferro-silicon: Containing by weight more than 55 % of silicon) into 4 national lines: 7202.21.10.00 (containing by weight more than 3 percent of calcium), 7202.21.50.00 (other), 7202.21.75.00 (containing by weight more than 80 percent but not more than 90 percent of silicon) and 7202.21.90.00 (containing by weight more than 90 percent of silicon). The general (MFN) duty differs by line: 1.1% on 7202.21.10.00, 1.5% on 7202.21.50.00, 1.9% on 7202.21.75.00 and 5.8% on 7202.21.90.00.

Source: https://border.bot/countries/united-states/hs-codes/720221
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 72](https://border.bot/countries/united-states/hs-codes/72) / [7202.21](https://border.bot/countries/united-states/hs-codes/720221)

## Key facts

- HS subheading: [7202.21](https://border.bot/hs-codes/720221)
- National lines: 4
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 72: Iron and steel

## United States lines under 7202.21

The United States tariff splits HS 7202.21 (ferro-silicon: Containing by weight more than 55 % of silicon) into 4 national lines: 7202.21.10.00 (containing by weight more than 3 percent of calcium), 7202.21.50.00 (other), 7202.21.75.00 (containing by weight more than 80 percent but not more than 90 percent of silicon) and 7202.21.90.00 (containing by weight more than 90 percent of silicon).

The general (MFN) duty differs by line: 1.1% on 7202.21.10.00, 1.5% on 7202.21.50.00, 1.9% on 7202.21.75.00 and 5.8% on 7202.21.90.00.

- [7202.21.10.00](https://border.bot/countries/united-states/hs-codes/7202211000) Ferrosilicon, Containing by weight more than 55 percent of silicon, Containing by weight more than 55 percent but not more than 80 percent of silicon, Containing by weight more than 3 percent of calcium. Duty (MFN): 1.1%
- [7202.21.50.00](https://border.bot/countries/united-states/hs-codes/7202215000) Ferrosilicon, Containing by weight more than 55 percent of silicon, Containing by weight more than 55 percent but not more than 80 percent of silicon, Other. Duty (MFN): 1.5%
- [7202.21.75.00](https://border.bot/countries/united-states/hs-codes/7202217500) Ferrosilicon, Containing by weight more than 55 percent of silicon, Containing by weight more than 80 percent but not more than 90 percent of silicon. Duty (MFN): 1.9%
- [7202.21.90.00](https://border.bot/countries/united-states/hs-codes/7202219000) Ferrosilicon, Containing by weight more than 55 percent of silicon, Containing by weight more than 90 percent of silicon. Duty (MFN): 5.8%

## In other countries

No other national tariff on border.bot has live lines under 7202.21 yet.

- [The Harmonized System text for 7202.21](https://border.bot/hs-codes/720221)

- Previous subheading: [7202.19](https://border.bot/countries/united-states/hs-codes/720219) Other
- Next subheading: [7202.29](https://border.bot/countries/united-states/hs-codes/720229) Ferroalloys

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 7202.21?

The United States tariff splits HS 7202.21 (ferro-silicon: Containing by weight more than 55 % of silicon) into 4 national lines: 7202.21.10.00 (containing by weight more than 3 percent of calcium), 7202.21.50.00 (other), 7202.21.75.00 (containing by weight more than 80 percent but not more than 90 percent of silicon) and 7202.21.90.00 (containing by weight more than 90 percent of silicon).

### What is the duty on HS 7202.21 in the United States?

The general (MFN) duty differs by line: 1.1% on 7202.21.10.00, 1.5% on 7202.21.50.00, 1.9% on 7202.21.75.00 and 5.8% on 7202.21.90.00.

## 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/720221.json