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Origin Cumulation under EVFTA vs UKVFTA for Steel and Steel Products: What Changed after Brexit?

4 min readFLAT LAW FIRM

Steel metallurgical plant
Illustration: Steel metallurgical plant — Source: Wikimedia Commons (CC).

A steel-pipe manufacturer near Haiphong uses German billets, rolls and welds them in Vietnam, then ships the same product to Rotterdam (EU) and Liverpool (UK). Its origin accountant applies one formula to both markets. That is an expensive mistake: the EVFTA and the UKVFTA are two separate agreements with two separate origin protocols — and their cumulation rules are not identical.

EVFTA: bilateral Vietnam–EU cumulation only

Under Article 3(1) of Protocol 1 to the EVFTA, a product is treated as originating in the exporting party when it is made there from materials originating in the other party — EU materials used in Vietnam, or Vietnamese materials used in the EU — provided the processing in the exporting party goes beyond the “insufficient” operations listed in Article 6.

Brexit changed something that used to be obvious: steel originating in the UK (or processing carried out in the UK) no longer cumulates as EU material for goods shipped to the EU under the EVFTA. A Vietnamese company buying UK steel coil for processing and re-export to the EU must treat that UK steel as non-originating material in its EVFTA calculation — even though before 2021 it counted as EU material.

UKVFTA: the EU-cumulation door is still ajar — conditionally

This is where many summaries get it wrong. The authentic text of Article 3(1) to (4) of Protocol 1 to the UKVFTA provides that a product is treated as originating in the exporting party when made there from materials originating in the other party or in the EU; working or processing carried out in the EU even counts as carried out in the UK, as long as the subsequent UK processing goes beyond insufficient operations.

But the door is not wide open. The treaty text attaches two safety catches:

  1. The administrative catch (paragraph 5): cumulation with the EU applies only where the countries involved have administrative-cooperation arrangements ensuring the correct implementation of the article. The business must hold a proof of origin for the EU materials issued under the mechanism the parties have agreed.
  2. The review catch: a footnote to Article 3 requires the agreement’s Committee on Customs to review the administrative arrangements for EU cumulation starting from the third year, for application from the fourth year after entry into force. As of the time of writing, exporters should not assume the 2021 practice is frozen — confirm the current position with the competent authority or legal counsel before relying on EU cumulation for UK-bound orders.

In short: for steel shipped to the UK, German-origin material may still cumulate under the UKVFTA — but as a conditional right, not an automatic one like bilateral cumulation.

Three practical differences steel businesses must remember

First, run a separate origin calculation per agreement. The same coil of galvanised steel faces two different maths problems: the EU-bound order (EVFTA) and the UK-bound order (UKVFTA) cumulate different material baskets and demand different proofs.

Second, do not confuse cumulation with tolerance. Cumulation turns a partner’s originating materials into “as if our own”; tolerance allows a small share of non-originating materials. Steel faces strict product-specific rules in Annex II — check the HS-code rule first, then consider cumulation or tolerance.

Third, the paperwork must match the mechanism chosen. UKVFTA cumulation with EU materials requires a proof of origin for the EU inputs issued under the parties’ administrative arrangement; without it, cumulation fails even if the goods physically qualify.

Frequently asked questions

Chinese billets rolled in Vietnam and shipped to the UK — can they cumulate?
No. Cumulation only covers materials originating in the other party (the UK), in the EU (under the UKVFTA, conditionally), or the other special cases in Article 3. Chinese billets are non-originating — assess them under the Annex II list rule and tolerance.

Steel shipped to the EU but made with UK-origin coil — how is it treated?
As non-originating material in the EVFTA calculation. To claim the preference, the product must satisfy the EVFTA Annex II list rule without relying on cumulation with UK inputs.

Can one set of origin documents cover a split shipment to the EU and the UK?
Better not. Two agreements, two protocols, two cumulation logics — prepare two separate calculation files and proofs, even for physically identical goods.

When should a steel business seek legal advice before signing a long-term contract?
When the supply chain mixes EU, UK and third-country inputs, and when the contract price already bakes in the tariff preference. One cumulation error can wipe out the entire contract margin if duties are clawed back.

This article has been quality-reviewed by the FLAW AI Legal Council

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