A proposed 2028 extension of the Carbon Border Adjustment Mechanism (CBAM) to selected downstream steel and aluminium products could change how European equipment manufacturers compare importing materials, fabricated parts or complete machines. The final scope had not been agreed as of October 2026, leaving the products covered by the proposal unsettled.
Choices that may compete in the same commercial tender can have different customs classifications, transport costs, documentation requirements and exposure to EU carbon rules. Under the existing mechanism, specified imported metal goods face obligations, while many completed machines remain outside CBAM’s initial six sectors. Importers cannot assume every finished product is exempt under current rules, or that every assembled product will be covered by a future extension: the result depends on the goods code, applicable annex and import date.
Compare costs across the supply chain
Buying steel plate for European fabrication entails local welding, machining, finishing and labour costs. Importing a welded housing moves those operations abroad and can bring longer lead times, quality-acceptance risks and potential tariff consequences. Importing a complete machine can also reduce local manufacturing content and increase reliance on an overseas supplier for technology support and spare parts.
For a steel-intensive vessel, procurement teams comparing an EU-produced vessel made from imported raw material, one welded abroad and one delivered within an integrated process package should establish the goods codes and embedded-emissions methodology for each configuration. The assessment should also cover alloy specifications, nondestructive-testing requirements, certificates, delivery conditions, insurance, warranty coverage and plant acceptance. A low ex-works quotation can lead to a higher installed cost if documentation or tolerances are inadequate.
Carbon costs belong in sourcing comparisons, but are not the only cost or consideration. In a hypothetical example, an EU-made fabricated housing is priced at EUR 900, against EUR 810 for an imported housing. The imported offer has a nominal EUR 90 discount; a credible comparison would add external freight, inspection, inventory financing and a quantified probability of rework. That saving could disappear if a few percent of imported pieces require repair or additional inventory is needed to protect the assembly schedule.
Separate legal exposure from sourcing estimates
An EU supplier may include the cost of EUA purchases and electricity in its quotation, even when its product does not attract CBAM on domestic sale. A non-EU competitor faces direct CBAM liability only for a covered item crossing the border, and both competitors may source components from the same Asian factories. Treating an estimated embedded-carbon shadow price as a legal import tax on an out-of-scope assembly would overstate costs; ignoring actual compliance obligations would understate them.
The proposed Industrial Accelerator Act is a separate policy variable. Stricter origin or local-content rules associated with procurement support could favour keeping manufacturing stages in Europe, even where labour or energy costs are higher. Management teams should test current customs and CBAM rules, the possible 2028 downstream perimeter, and a downside scenario with higher energy and freight costs, while including quality, lead-time and capital requirements in each scenario.
The likely geographic outcome is not necessarily a wholesale relocation of manufacturing out of Europe. European factories retain advantages in customer proximity, qualification, design ownership, industrial know-how and aftermarket support. Some lower-value fabrication could move abroad while precision processing and final testing remain close to users.
Keeping prototype fabrication and qualification near design teams may speed product improvement even if mass production is outsourced. Firms that lose control of welding procedures, machining tolerances and tooling may find it much more expensive to bring assembly back in-house. Carbon reform could shift the cost boundary between manufacturing locations, but sourcing decisions also depend on whether companies want to preserve manufacturing know-how and capabilities that are difficult to reacquire. The strategic task is to adjust value-chain boundaries without losing technical control of products.