# CBAM 2026: What It Means for Buyers of Machined Aluminium and Steel > The EU Carbon Border Adjustment Mechanism entered its definitive regime on 1 January 2026, covering iron and steel, aluminium, cement, fertilisers, electricity and hydrogen. What does it change for buyers of machined metal parts? https://www.sinbo-machining.com/news/cbam-definitive-regime-metal-parts/ --- ## On This Page - What Actually Changed on 1 January 2026 - Why This Reaches a CNC Buyer - What Your Supplier Now Needs to Be Able to Provide - What This Means for Your Next Quote - 1. Ask for the certificate with the quote, not after the order - 2. Grade choice now has a cost dimension - 3. Traceability is becoming a commercial requirement, not a quality nicety - The Honest Summary - Sources - Related Reading - EN 10204 Material Certificates: A Buyer’s Guide - Aluminium CNC Machined Parts - Need a Quote? [Trade & Compliance ](https://www.sinbo-machining.com/news/?cat=trade-compliance)[Materials ](https://www.sinbo-machining.com/news/?cat=materials) # CBAM Went Live on 1 January 2026. Here Is What It Changes for Buyers of Machined Aluminium and Steel Parts October 28, 2026 7 min read Sinbo Precision Engineering Team [Aluminium and steel machined parts subject to EU CBAM carbon border adjustment reporting] CBAM definitive regime: importers of iron, steel and aluminium goods into the EU now carry the carbon reporting obligation The EU's Carbon Border Adjustment Mechanism entered its definitive regime on 1 January 2026, covering iron and steel, aluminium, cement, fertilisers, electricity and hydrogen. For anyone importing machined metal parts into the EU, this changes who carries the carbon documentation burden — and it changes what your supplier has to be able to give you. ## What Actually Changed on 1 January 2026 CBAM has been running since 2023, but until now it was in a transitional phase: importers reported embedded emissions data but did not have to buy and surrender certificates. The definitive regime changes that. As of 1 January 2026, CBAM introduces three binding obligations for importers — the need for an authorisation to import covered goods, reporting obligations on embedded emissions, and the purchase and surrender of CBAM certificates corresponding to those emissions. The mechanism complements the EU Emissions Trading System. Free ETS allowances are being phased out, so the carbon price that used to apply only to EU producers is now being applied to the carbon content of what arrives from outside the EU. The certificate price is calculated from EU ETS auction prices and is published regularly. ## Why This Reaches a CNC Buyer CBAM applies to imports of goods in carbon-intensive sectors: cement, iron and steel, aluminium, fertilisers, electricity and hydrogen. You may be buying a machined aluminium bracket or a stainless steel valve body, and never think of yourself as an iron and steel importer. You are, however, buying a product whose underlying material sits squarely inside a covered sector. Here is the part that catches buyers out. The customs classification of the finished part is not always what triggers the obligation. A machined component that has been substantially transformed — drilled, milled, turned, finished — may be classified under a different heading than its raw material, and the treatment depends on the specific product and its classification. This is why we tell buyers to confirm their customs position with their own broker rather than assume. ## What Your Supplier Now Needs to Be Able to Provide Here is where the practical work lands. If your EU importer has to report embedded emissions for covered goods, then at some point the importer will need emissions data from the supply chain. For imported machined parts, that means the mill data for the material your part was cut from — and for a supplier who buys stock and machines it, that is a question the supplier needs to be able to answer. Practically, useful suppliers will be able to point you to: - Material certificates with mill origin — EN 10204 3.1 (or 3.2 where required) from the actual producer, not a distributor re-certification - Emissions data for the specific grade — the embedded-emissions figure for the alloy and temper you actually specified, not a generic per-kilogram average - A traceable chain from billet to part — heat number to the certificate to the part - Process records that show what was done — which affects the emissions calculation for the conversion step A supplier that cannot answer those questions is not necessarily non-compliant — they may simply not have been asked before. But the question will be asked, and the honest answer is that it is much cheaper to sort out before a shipment is in transit than after. ## What This Means for Your Next Quote Three practical consequences for buyers working with a Chinese machining supplier: ### 1. Ask for the certificate with the quote, not after the order A supplier quoting 3-5 days on aluminium 6061-T651 should be able to say, on day one, whether EN 10204 3.1 certificates are included and which mill they come from. If that answer requires a week, your import timeline has an extra week in it that nobody has budgeted for. ### 2. Grade choice now has a cost dimension Carbon intensity differs by alloy and by production route. If two grades meet your mechanical requirements, the emissions data may not be equal — and in a CBAM-covering import, that difference eventually reaches your landed cost. This is not an argument for changing materials on a whim. It is an argument for asking for the data before you decide. ### 3. Traceability is becoming a commercial requirement, not a quality nicety We already issue EN 10204 3.1 certificates with heat-number traceability on our aluminium, steel, stainless and copper work. That is standard practice for us and for any supplier working to a serious quality system — but in a CBAM world it stops being just good practice and becomes the thing that makes your import possible to clear. ## The Honest Summary CBAM does not raise the price of aluminium or steel by a fixed percentage, and anyone who tells you otherwise is guessing. It prices the carbon content of specific goods as they enter the EU, which means the impact on any given machined part depends on its material, its classification, and the emissions data behind it. What is certain is the direction. Documentation that was optional is now required, and the data has to originate with the supplier and the mill. If you are sourcing machined metal parts into the EU, ask your supplier now what emissions data they can put behind a quote. The answer tells you whether they are actually ready for the regime that is already in force. ## Sources This analysis is based on the European Commission's official description of the CBAM definitive regime, published by the Directorate-General for Taxation and Customs Union: - [European Commission, Taxation and Customs Union — Carbon Border Adjustment Mechanism ](https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism_en)— states that CBAM applies in its definitive regime from 1 January 2026, introduces importer authorisation, reporting and certificate surrender obligations, and covers cement, iron and steel, aluminium, fertilisers, electricity and hydrogen. Certificate pricing is based on EU ETS auction prices. This article is general information about an EU regulatory regime and is not customs or tax advice. Classification and treatment depend on your specific goods and circumstances — confirm with your own broker or customs authority. Tags: CBAM Carbon Aluminium Steel Import Cost ## Related Reading [ ### EN 10204 Material Certificates: A Buyer’s Guide What the 2.1, 3.1 and 3.2 certificate types actually mean, and which one your part needs. ](https://www.sinbo-machining.com/wiki/quality/en10204-material-certificate-guide/)[ ### Aluminium CNC Machined Parts Alloys we machine, the tempers we run, and the certification that comes with each order. ](https://www.sinbo-machining.com/products/materials/aluminum/) ## Need a Quote? Send us your drawing and we will come back with material, process and lead time — including certification details. [Get Quote ](https://www.sinbo-machining.com/quote/)[Contact Us ](https://www.sinbo-machining.com/contact/)