UK aerospace and defence exports reach £50bn. Who can trace every part?
UK aerospace, defence, security and space companies now export £50 billion a year. ADS Group’s figures, published on 9 July, show that’s 45% of sector turnover of nearly £110 billion, and exports have grown by more than two thirds in a decade.
Every exported part makes a claim about itself. Where was it made, from what material, in which batch, to which standard? A customer, a customs officer or an airworthiness authority can ask at any point in the part’s life, which can be decades after it left the factory. In our view, the supplier who can answer fastest, with evidence, is the one that keeps the work.
What the ADS figures show
ADS says the four sectors added £46.8 billion to the UK economy in 2025 and directly employ 468,500 people. Turnover is up 62% since 2015, and employment is up nearly 40%. Each of those sectors buys, builds and ships parts that have to be identified for life.
The UK supply chain depends on customers abroad, and those customers expect the evidence to travel with the part.
Where tariffs fit, and where they don’t
Aerospace sits in a different tariff position from cars. In June 2025 the US moved to zero-for-zero tariffs on UK aerospace products, removing the 10% rate on aircraft and parts. The North West Aerospace Alliance, citing Make UK, reported that the zero rate applies to goods that fall under the WTO Agreement on Trade in Civil Aircraft.
That condition matters. A zero rate attaches to a category, and an exporter has to be able to show that a given part belongs in it. In our view, that turns a tariff question into a records question.
Carmakers face a sharper version of the same test. SMMT estimates at least £1.4 billion in extra tariffs on UK-EU battery electric and plug-in hybrid trade when rules of origin tighten on 1 January 2027, because vehicles have to show enough UK or EU content. The details differ between sectors, but eligibility depends on evidence in both, and the evidence has to be tied to the part.
The standards behind a traceable part
Traceability isn’t one standard. It’s a stack, and each layer answers a different question.
The first layer is who asks for the mark. MIL-STD-130 is the US Department of Defense standard for identification marking of military property, and it includes Item Unique Identification, which gives every discrete item in the DoD inventory a globally unique identifier. ATA/A4A Spec 2000, created by the airline industry, covers the electronic exchange of business data such as orders, certificates and maintenance records.
The second layer is how the mark is made. AS9132, issued by the International Aerospace Quality Group, defines process requirements for dot marking 2D Data Matrix codes on metallic parts. It also exists as EN9132 in Europe and SJAC 9132 in Asia Pacific, with identical technical content. ISO/IEC 16022 defines the Data Matrix symbol itself.
The third layer is how the mark is graded. MIL-STD-130 accepts three routes for grading a Data Matrix code: ISO/IEC 15415, AIM DPM-1-2006, or an AS9132 pass or fail result. ISO/IEC TR 29158 and the AIM DPM guideline extend barcode quality grading to dot peen and laser direct part marks.
The fourth layer comes from the customer. JES131 defines how Rolls-Royce components should be marked, and RRES90003 covers identification marking methods and controls more generally. PWA309 and PWA310 are the Pratt & Whitney equivalents. A part can satisfy the general standards and still fail a customer specification, so in our experience it pays to settle which ones apply before the first part is marked, not after the first audit.
Our guide to aerospace part marking and traceability goes through each of these in more detail.
How we approach it
We mark aerospace components by laser and dot peen, and we build systems that verify every code before the part moves on. Our integrated vision cameras check codes against the standard the customer specifies, and we record the ISO/IEC 15415 grade after marking. In our experience, a grade stored against the part record is the cheapest evidence a manufacturer can keep that the mark met the specification on the day.
Our traceability software works with existing data management systems to give real-time part tracking across the part’s life. For large cylindrical parts such as turbine housings, our multi-axis marking station handles the geometry. Our Aerospace Marking and Verification Station can be configured to match US DoD UID, ATA/A4A Spec 2000, AIM DPM, SAE AS9132, JES131 and RRES90003. We design and build every system at our Sheffield headquarters.
Questions to ask before your next export order
Which standards do your customers call up on the purchase order? Can your marking system be configured to match each one? Is every code verified and graded at the point of marking, with the grade stored against the part record? Could a customer or auditor open that record without phoning you?
If any answer is uncertain, speak to our engineers. Call +44 (0)114 276 6044 or email info@pryormarking.com.