What verified data could be worth

These figures use default emission values. HMRC hasn't published UK values yet, so we use the European Commission's published defaults where they exist and sector averages otherwise. If your suppliers emit less than the default, you're overpaying, and verified supplier data is how you prove it. Use the calculator to see the arithmetic for your imports.

Annual value of CBAM-scope imports

Your imports of aluminium, cement, fertiliser, hydrogen, or iron and steel from outside the UK.

Primary sector of your imports

Primary country of origin

How do your suppliers' emissions compare with the default value?

These figures use default emission values. HMRC hasn't published UK values yet, so we use the European Commission's published defaults where they exist and sector averages otherwise. If your suppliers emit less than the default, you're overpaying, and verified supplier data is how you prove it. Whether your suppliers beat it is your assumption, not ours.