What CBAM 2026 Means for Buyers Sourcing Aluminium Castings from Outside the EU

# What CBAM 2026 Means for Buyers Sourcing Aluminium Castings from Outside the EU

If you purchase aluminium castings for a European operation, 2026 changed your job. On 1 January 2026 the EU's Carbon Border Adjustment Mechanism (CBAM) entered its definitive period — the carbon content of imported aluminium is now a cost line and a compliance obligation, not a future worry. This guide explains, from a buyer's point of view, what actually changed, where aluminium castings sit in it, and what you should be asking any non-EU casting supplier right now.

What CBAM actually does, in plain terms

CBAM puts a carbon price on certain goods imported into the EU, so that imports carry a carbon cost comparable to goods made under the EU Emissions Trading System. Aluminium is one of the covered sectors. During the transitional period (2023–2025) importers only had to report. From 1 January 2026, the definitive period means authorised CBAM declarants must report the embedded emissions of covered imports and surrender CBAM certificates to cover them.

In practice, for an EU importer of aluminium castings, three things are now true:

• •You need supplier-level data on the embedded emissions of what you import.
• •Those emissions translate into a cost (certificates), not just a form to file.
• •Missing or unverifiable data is a problem — default values tend to be conservative (high), which means higher cost and more audit exposure.

Why castings are a particular headache

Aluminium's carbon footprint is dominated by how the metal was produced. Primary smelting is extremely electricity-intensive, and the carbon intensity of that electricity varies enormously by region. A cast part's embedded emissions therefore depend heavily on the alloy source, the foundry's energy mix, and the process route — not on the casting geometry itself.

One lever matters more than any other: recycled content. Secondary (recycled) aluminium carries a small fraction of the embedded emissions of primary metal, because it skips the electricity-intensive smelting step. A casting poured from high recycled-content alloy can have a dramatically lower CBAM exposure than the same part from primary metal — which is why "what is your recycled content?" is one of the most financially relevant questions a buyer can ask in 2026.

The problem: most casting suppliers outside the EU have never been asked for embedded-emissions data and cannot produce a defensible number on request. If your supplier can't, you fall back on default values — and pay for it.

What to ask your casting supplier now

Whether you stay with your current source or qualify a new one, these CBAM-relevant questions belong in your RFQ alongside the usual quality and lead-time items:

• •Can you provide embedded-emissions data per part, and on what basis is it calculated?
• •What share of the alloy is recycled versus primary?
• •What is the energy-source profile of the foundry?
• •Can the data be backed by documentation an EU auditor would accept?

A supplier who understands the question — even if their number isn't the lowest — is far more useful than one who goes quiet. CBAM compliance is about defensible data, not just low carbon.

Where Bohua stands

We are an IATF 16949 gravity die casting foundry in Ningbo supplying pump, valve and automotive aluminium castings to overseas OEMs. We won't pretend our grid is Europe's — China's electricity is more carbon-intensive than the EU average, and any supplier claiming otherwise should be treated with caution. What we will do is work with EU buyers on the data side: providing the alloy-source, recycled-content and process information you need for your CBAM reporting, and being transparent about how a part is made so your declaration is defensible.

For buyers, that transparency is the point. A casting that arrives with clear, documented carbon data is easier to bring into the EU than a cheaper one that leaves a blank in your CBAM filing. If you want to see how we handle data and documentation generally, our RFQ process is built around giving buyers a complete picture before commitment.

The practical takeaway

• •CBAM's definitive period is live as of January 2026 — embedded carbon in imported aluminium is now a real cost, not a future one.
• •Castings are exposed because their footprint depends on alloy source and foundry energy, which most suppliers cannot document.
• •Recycled content is the single biggest lever on a casting's CBAM exposure — ask about it.
• •Choose suppliers on defensible, documented data, not just on price or headline carbon claims.

CBAM raises the bar on supplier transparency. For buyers who get ahead of it, it is also a way to separate suppliers who can support a compliant European supply chain from those who cannot.

*This article is general guidance on CBAM as it applies to aluminium casting procurement, not legal or customs advice. Confirm current CBAM obligations and values with the European Commission or your customs advisor before making compliance decisions.*