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CBAM 2026: What the Definitive Regime Means for GCC Aluminium & Steel Exporters

The EU's Carbon Border Adjustment Mechanism entered its definitive regime in January 2026. What it costs GCC aluminium, steel and fertiliser exporters — and how to prepare.

By Sumit Agarwal
5 min read
Key takeaways
01

The EU CBAM definitive regime began on 1 January 2026 — importers now buy and surrender CBAM certificates priced on EU ETS allowance auctions.

02

It covers six sectors: aluminium, iron & steel, cement, fertilisers, electricity and hydrogen — with a 50-tonne de minimis threshold.

03

Bahrain and the UAE are the most exposed GCC economies; aluminium dominates the region's CBAM-covered exports.

04

GCC aluminium is competitively low-carbon today (~1.6 tCO₂e/t vs China 2.28), but the cost escalates sharply toward 2034 — and rises further if indirect emissions are added.

Introduction

The EU’s Carbon Border Adjustment Mechanism (CBAM) stopped being a paperwork exercise on 1 January 2026. After two years of transitional, report-only obligations, the definitive regime is now live: importers of covered goods into the EU must buy and surrender CBAM certificates that put a carbon price on the embedded emissions of what they bring in. For the GCC — and for its aluminium producers in particular — this is the moment the mechanism starts to carry a real cost. This article explains how the definitive regime works and what exporters across the Gulf should do now.

What CBAM is, and the six sectors it covers

CBAM is the EU’s tool to stop “carbon leakage” — the risk that EU climate policy simply pushes production to jurisdictions with weaker carbon pricing. It puts the same carbon cost on imports that EU producers pay under the EU Emissions Trading System (ETS). It currently applies to six carbon-intensive categories:

aluminium · iron and steel · cement · fertilisers · electricity · hydrogen.

For the Gulf, aluminium is the exposure that matters — it dominates the region’s CBAM-covered exports.

How the definitive regime works

Under the definitive regime, an EU importer that brings in more than a single mass-based threshold of 50 tonnes of CBAM goods per year must become an authorised CBAM declarant. From there the obligations are concrete:

  • Declare the embedded greenhouse gas emissions of the imported goods each year.
  • Buy and surrender CBAM certificates equal to those emissions. Certificate prices track EU ETS allowance auction prices — calculated as quarterly averages in 2026, then weekly from 2027.
  • Deduct any carbon price already paid in the country of production.
  • Use verified actual emissions where available; fall back to the Commission’s default values where not — and the defaults are deliberately conservative (i.e. expensive).

Why the GCC is exposed — and by how much

CBAM lands unevenly across the Gulf. On the latest analysis, Bahrain and the UAE are the most exposed, both in absolute terms and relative to GDP — Bahrain’s CBAM-covered exports are around 2.89% of GDP, the UAE’s about 0.53%. In 2023, CBAM-covered exports were roughly $2.7bn (UAE), $1.3bn (Bahrain), $565m (Saudi Arabia) and $400m (Oman).

And it is overwhelmingly one product: aluminium accounts for around 99% of Bahrain’s covered exports and 68–75% of the UAE’s, Oman’s and Saudi Arabia’s. The Gulf ranks among the world’s largest aluminium producers.

CBAM doesn’t ask whether your metal is low-carbon. It asks whether you can prove it.

The good news: GCC aluminium is genuinely low-carbon

Here is the part that should shape strategy rather than panic. On direct emissions, GCC smelters are competitive with Europe and well ahead of Asia: Gulf aluminium sits at roughly 1.6 tCO₂e/t, against the EU at ~1.65 and China at ~2.28. Under the current direct-emissions rules, that means the CBAM charge on Gulf metal is comparable to the charge EU producers already absorb — and lower than the charge on Chinese or Indian metal. Handled well, CBAM is a chance to take EU market share from higher-carbon competitors, not just a cost to swallow.

The cost is modest at first and then steep. Illustratively, the charge on Gulf aluminium is around $4/tonne in 2026 but escalates toward ~$350/tonne by 2034 as the EU’s free-allocation phase-out and rising ETS prices bite. Producers are already moving — Emirates Global Aluminium, for instance, targets a 25% cut in CO₂ intensity by 2035.

The hidden risk: indirect (electricity) emissions

The current rules count mainly direct process emissions. If CBAM is extended to indirect emissions from the electricity used to smelt — and the EU is actively considering scope changes, including downstream steel and aluminium products — the Gulf’s exposure rises sharply, because regional grids are gas-heavy. GCC metal would still beat coal-powered Chinese and Indian production, but the gap to hydro-powered Nordic smelters widens. This is the single most important variable to watch, and it is a powerful argument for renewable-powered smelting and credible power-sourcing claims.

What GCC exporters should do now

  1. Build an installation-level GHG inventory to the CBAM methodology — direct and (increasingly) indirect emissions, per product, with an audit trail.
  2. Get the numbers independently verified under ISO 14064-3, so your EU customers can avoid default values.
  3. Quantify your carbon-price deduction — any carbon cost already paid at home reduces the CBAM bill, which strengthens the case for domestic carbon pricing.
  4. Put the data into a decarbonisation roadmap that protects margin as the charge escalates toward 2034 — renewable power, process efficiency, and credible low-carbon product lines.
  5. Make it a board-level strategy issue, not a compliance afterthought — CBAM reshapes the economics of every tonne exported to Europe.

How ESGweise helps

ESGweise builds CBAM-ready emissions inventories for GCC industrial exporters — measured, verifiable, and structured so an assurance provider can sign and your EU buyers can rely on them. We connect that data to a decarbonisation roadmap and to your wider sustainability reporting, so the same numbers serve CBAM, investors, and IFRS S2 disclosure at once. For the sector context, see our work with heavy industry and manufacturing and our primer on Scope 3 emissions.

Conclusion

CBAM’s definitive regime makes carbon a line item on every tonne the Gulf ships to Europe. The region starts from a genuinely strong position — its aluminium is low-carbon by global standards — but that advantage only pays off for producers who can prove their emissions and keep cutting them as the charge escalates. The exporters who measure, verify, and decarbonise now will turn CBAM from a tax into an edge.