CBAM Exposure & Cost Estimator
CBAM's definitive, financially binding phase started 1 January 2026. The EU importer is the one who registers, reports and pays — not the supplier — but the importer's declaration runs on data that only the supplier has: production route, embedded emissions, mill certificates. Stainless washers sit under CN 7318, which is listed in CBAM Annex I, so EU imports have carried CBAM certificate obligations since 1 January 2026. From 2026 only direct emissions count, and imports below the 50-tonne annual net-mass threshold stay outside CBAM. This tool runs the numbers both sides need in order to budget.
Two other tools that pair with this one: the full CBAM explainer for washer importers covers the regulation in detail, and the weight calculator gets you a net-weight figure if you only know dimensions and quantity, not kilograms.
Part 1 — De-minimis exposure check
The 50-tonne threshold decides whether CBAM applies to you at all. It's assessed across all your CBAM-covered imports for the year, not just washers.
Note: hydrogen and electricity imports are excluded from this de-minimis calculation entirely — they're covered separately. The 50-tonne threshold itself is a policy setting (introduced via the Omnibus simplification package) and may be reviewed or adjusted; don't treat it as permanent.
Part 2 — Indicative CBAM certificate cost
This follows the calculation the EU actually prescribes, rather than a flat emissions × price multiplication. The benchmark deduction and the CBAM factor both reduce what is payable, and leaving them out overstates the cost substantially.
Official cost formula (per tonne of imported goods):
[ specific CO2 emissions − ( benchmark × CBAM factor ) ] × certificate price − carbon price already paid in the country of origin
Indicative budgeting figure only — not a declaration figure. The declared amount must come from the producer’s verified installation-level data, or from the Commission’s official default value for the exact 8-digit CN code and country of origin. From 2026 only direct emissions count; indirect emissions, which were reported during the transitional period, are excluded. This is not legal, tax or customs advice.
Reference values used above
| Year | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 | 2034 |
|---|---|---|---|---|---|---|---|---|---|
| CBAM factor | 0.975 | 0.950 | 0.900 | 0.775 | 0.515 | 0.390 | 0.265 | 0.140 | 0.00 |
| Route / product | Benchmark (tCO2e / t) | Where it applies |
|---|---|---|
| Fasteners, carbon steel via BF/BOF — route (C) | 1.364 | The benchmark applied directly to the finished fastener when default values are used. Most fasteners fall here. |
| Steel, BF-BOF | 1.370 | Primary steelmaking from ore via blast furnace. |
| Steel, DRI-EAF | 0.481 | Direct-reduced iron feeding an electric arc furnace. |
| Steel, scrap-EAF | 0.072 | Electric arc furnace on recycled scrap — the lowest-carbon route. |
| Year of import | 2026 | 2027 | 2028 onwards |
|---|---|---|---|
| Mark-up on the default value | +10% | +20% | +30% |
Why this matters commercially. An importer who receives verified emissions data from the producer uses that figure. An importer who receives nothing must fall back on the default value, which carries the mark-up above and is normally the more expensive of the two. Supplier data that can actually be verified is therefore worth real money to the buyer.
Part 3 — What your EU buyer will ask you for
If you supply an EU importer of washers, this is the practical list — the documents and data points that come up once they start their CBAM declaration or vendor-qualification process.
- 1Producer's installation-level embedded emissions data — direct emissions from the production process plus, where relevant, indirect emissions from electricity used.
- 2Production route — scrap-based EAF versus blast furnace (BF-BOF). This single fact swings the emission factor by more than an order of magnitude.
- 3Mill test certificate / material traceability — EN 10204 3.1, tracing the delivery back to a specific melt.
- 4CN code and net mass per shipment — for washers, CN 7318.22, stated in kilograms on the commercial documents.
- 5Whether a carbon price was already paid at origin — if so, that amount can be deducted from what the importer owes.
What HUIHUI provides: CN code and net weights stated on shipping documents, EN 10204 3.1 mill test certificates, production-route information on request, and product-carbon-footprint data where our upstream mill can supply it. Washers are stamped from coil, so the embedded emissions in a finished washer trace mostly back to the coil producer's route, not our stamping process — we source documented melts and can pass that data through to you rather than guessing at a number.
FAQ
Are washers already covered by CBAM?
Yes. Washers fall under CN 7318, which is listed in CBAM Annex I to Regulation (EU) 2023/956. EU importers must hold and surrender CBAM certificates for the embedded emissions of goods imported from 1 January 2026 onwards; no further amendment to Annex I is needed for washers. A separate Commission proposal of 17 December 2025 would extend CBAM to roughly 180 additional downstream categories from 1 January 2028, but that concerns other goods. From 2026 only direct emissions count, and imports below the 50-tonne annual net-mass threshold stay outside CBAM.
Who pays, importer or supplier?
The EU importer. They register as the authorised CBAM declarant, file the annual declaration, and buy and surrender the CBAM certificates. The non-EU manufacturer, such as HUIHUI, has no CBAM payment obligation. But the importer's declaration runs on embedded-emissions data that has to come from the manufacturer, so the supplier still carries a practical data-sharing role even without a financial one.
What is the CBAM certificate price now?
For Q1 2026 the default used in this tool is €75.36 per tCO2e. Through 2026, the CBAM certificate price is set as a quarterly average of EU ETS primary-market auction prices; from 2027 it moves to a weekly-average calculation. The price changes every period, so check the European Commission's published CBAM certificate price before using it for an actual declaration or budget figure.
How do I lower my CBAM cost?
Three levers matter most. First, source from a scrap-based EAF production route rather than blast furnace — the benchmark factor is roughly 19 times lower (0.072 vs 1.37 tCO2e/t in the EU benchmark set). Second, get your supplier's actual verified emissions data instead of falling back on the Commission's default values, which are set conservatively high. Third, claim the free-allocation (benchmark) deduction your declaration is entitled to, and deduct any carbon price already paid at origin — both reduce the certificates you actually have to surrender.
What data can HUIHUI provide?
CN code and net mass per shipment on shipping documents, EN 10204 3.1 mill test certificates tracing the coil melt, production-route information for the raw material (EAF vs BF-BOF), and product-carbon-footprint or embedded-emissions data on request where our upstream supplier can provide it. Washers are stamped from coil, so the bulk of the embedded emissions trace back to the coil producer's route — we source documented melts and pass that data through rather than guessing at it.
Disclaimer: This tool is general background information for procurement and trade professionals, not legal, customs, or regulatory advice. CBAM rules, implementing regulations, certificate prices, and the list of covered goods (Annex I) change over time, and the figures used here (de-minimis threshold, benchmark emission factors, certificate price) are current as of the update date shown above and may be out of date by the time you read this. Confirm current requirements and figures with a qualified customs adviser, CBAM consultant, or your national competent authority before making a compliance or budget decision.
Need CBAM documentation for an actual order?
Send the standard, size, material grade and quantity, and flag any CBAM or MTC documentation you need. We reply with pricing, lead time, and available documentation within one business day.
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