# Are ferro-silicon and silico-manganese covered by the UK CBAM?

Canonical: https://senseible.earth/answers/uk-cbam-ferro-silicon-silico-manganese

No. HMRC's UK CBAM list marks ferro-silicon (7202 21) and ferro-silico-manganese (7202 30) as excepted, with ferro-silico-chromium, ferro-molybdenum, ferro-tungsten, ferro-titanium, ferro-vanadium, ferro-niobium, ferro-phosphorus and ferro-silico-magnesium. Ferro-manganese, ferro-chrome and ferro-nickel are covered.

## Excepted from UK CBAM

- 7202 21 ferro-silicon.
- 7202 30 ferro-silico-manganese.
- 7202 50 ferro-silico-chromium.
- 7202 70 ferro-molybdenum; 7202 80 ferro-tungsten; 7202 91 ferro-titanium; 7202 92 ferro-vanadium; 7202 93 ferro-niobium.
- 7202 99 10 ferro-phosphorus; 7202 99 30 ferro-silico-magnesium; 7202 99 80 other.

## Covered

Ferro-manganese, ferro-chrome and ferro-nickel remain in scope, with UK defaults of 1.859 tCO2e per tonne for high-carbon ferro-manganese, 2.585 for high-carbon ferro-chrome and 5.502 for ferro-nickel.

## Your steel customers still ask

A UK steelmaker's own figure includes covered ferro-alloys as precursors. Excepted alloys add no CBAM precursor emissions in the UK scheme, but buyers reporting Scope 3 may still ask for their footprint.

## What Senseible does here

Senseible reads coke, coal, quartzite and power invoices for a smelter by month, which gives the footprint a steel buyer asks for even where UK CBAM does not apply. We build the figure from your records and check every figure in-house; for the UK it must then be verified by a verifier accredited for UK CBAM. Have your own verifier? Send it to them.

- [Check a CN code](https://senseible.earth/answers/check-if-product-cn-code-covered-by-cbam)
- [CBAM for Indian exporters](https://senseible.earth/cbam)

Sources: [HMRC, Goods within the iron and steel sector in scope of UK CBAM](https://www.gov.uk/government/publications/check-which-goods-are-in-scope-of-carbon-border-adjustment-mechanism-cbam/goods-within-the-iron-and-steel-sector), [HMRC, UK CBAM iron and steel default values (published 16 October 2026)](https://www.gov.uk/government/publications/check-the-default-values-for-the-carbon-border-adjustment-mechanism-cbam/iron-and-steel-default-values)

Last reviewed 2026-11-02.