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CBAM supplier data request: email template

To use a supplier's actual emissions instead of the EU default value, you need six things from them for each production year: the installation's identity, country and period, the specific direct embedded emissions per tonne with the production route, sector parameters, an accredited verifier's report, and any carbon price actually paid. Without the verifier's report, the default value plus mark-up applies.

Fill in the fields and copy a ready email — whether you are an EU importer asking a non-EU supplier, or a producer asking the supplier of your steel or aluminium.

What to ask for, and why

1. Installation: operator name, installation name and address, UN/LOCODE or coordinates, and the installation's identifier in the CBAM Registry (O3CI) if you have one.
2. Country of production and the production period (calendar year).
3. Specific direct embedded emissions, in tonnes of CO2e per tonne of product, for CN your CN code, and the production route.
4. Sector parameters where they apply — for steel: scrap per tonne, share of pre-consumer scrap, Mn/Cr/Ni content and the main reducing agent.
5. Verification: the report of an accredited verifier for that period (verifier name, accreditation body and number), or the date verification is planned. Verified reports on 2026 data can be issued from 2027.
6. Any carbon price actually paid in the country of production for these goods, with evidence.

The verification report is the item that decides everything. A figure from an email or a datasheet is not enough: without a report from an accredited verifier covering that year, the default value for the country of production applies, plus a mark-up of 10% in 2026, 20% in 2027 and 30% from 2028.

The templates

I am an EU importer — asking my non-EU supplier

Subject: CBAM emissions data request — {product} (CN {cn}), production year {year}

Dear {supplier},

Under the EU Carbon Border Adjustment Mechanism (CBAM) we must report the embedded emissions of the {product} (CN {cn}) we buy from you. To use your actual data instead of the EU default value — which carries a mark-up of 10% in 2026, rising to 30% from 2028 — we need the following for goods produced in {year}:

1. Installation: operator name, installation name and address, UN/LOCODE or coordinates, and the installation's identifier in the CBAM Registry (O3CI) if you have one.
2. Country of production and the production period (calendar year).
3. Specific direct embedded emissions, in tonnes of CO2e per tonne of product, for CN {cn}, and the production route.
4. Sector parameters where they apply — for steel: scrap per tonne, share of pre-consumer scrap, Mn/Cr/Ni content and the main reducing agent.
5. Verification: the report of an accredited verifier for that period (verifier name, accreditation body and number), or the date verification is planned. Verified reports on 2026 data can be issued from 2027.
6. Any carbon price actually paid in the country of production for these goods, with evidence.

The Commission's Communication Template (Excel) is the format we can process most easily. Please reply by {date}. Without verified data we will have to use the EU default value plus mark-up for your goods.

Kind regards,
{sender}

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Prepared with cbamfile.com — a free guide for suppliers: https://cbamfile.com/cbam-data-request

I am a producer — asking the supplier of my steel or aluminium

Subject: CBAM: embedded emissions of the {product} (CN {cn}) you supply — production year {year}

Dear {supplier},

We use the {product} (CN {cn}) you supply to make goods we export to the European Union, where the Carbon Border Adjustment Mechanism (CBAM) applies. Its emissions are part of the figure our EU customers need from us. Please send the following for the material produced in {year}:

1. Installation: operator name, installation name and address, UN/LOCODE or coordinates, and the installation's identifier in the CBAM Registry (O3CI) if you have one.
2. Country of production and the production period (calendar year).
3. Specific direct embedded emissions, in tonnes of CO2e per tonne of product, for CN {cn}, and the production route.
4. Sector parameters where they apply — for steel: scrap per tonne, share of pre-consumer scrap, Mn/Cr/Ni content and the main reducing agent.
5. Verification: the report of an accredited verifier for that period (verifier name, accreditation body and number), or the date verification is planned. Verified reports on 2026 data can be issued from 2027.
6. Any carbon price actually paid in the country of production for these goods, with evidence.

Without a verification report covering that year, we must use the EU default value for your country plus a mark-up — usually far higher than your real figure. Please reply by {date}.

Kind regards,
{sender}

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Prepared with cbamfile.com — a free guide for suppliers: https://cbamfile.com/cbam-data-request

When the supplier says "we don't have that"

Most small producers have never calculated a per-tonne figure. Send them the guide for suppliers who received a data request and the checklist of what to collect. For iron, steel and aluminium they can calculate the figure and fill the Commission's Communication Template with this calculator. Until their figures are verified, plan on the default value — see it for their country.

Last updated 2026-10-05.

CBAM File is a browser-based calculator for non-EU steel and aluminium producers — free to compare, paid for exact figures and files. Your production data never leaves your browser. Open the calculator →

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