Sourcing niobium sputtering targets from China

Niobium targets: 0% duty

Read from the UK Trade Tariff on 2 October 2026, heading 8112 covers niobium and other named metals, including articles, unwrought material, powders and scrap. The target forms in the table share the candidate niobium-articles line 8112 99 50 90. These are product forms within a tariff line, rather than separate tariff subdivisions. Wider material forms are covered in our niobium sheets guide.

The supplied tariff facts show 0% duty for goods from China throughout this heading, with no listed anti-dumping or countervailing duty and no suspensions. No import control is attached to 8112 99 50 90 in those facts. The unwrought-niobium line 8112 92 40 00 carries import and export waste controls. Confirm their application with your customs broker if buying spent targets or material for recovery; notified waste movements require consent from the destination, dispatch and transit authorities before shipment.

Confirm the commodity code using composition, manufacturing condition and whether a backing plate is supplied. Ask the broker to assess bonded assemblies separately rather than assuming the unbonded-target code applies. Import VAT is 20%; see UK import duty and VAT for the calculation method.

Specify purity, geometry and the backing bond

Write the niobium purity, individual impurity limits and analysis method into the order. Request a batch-specific certificate showing oxygen, nitrogen, hydrogen, carbon and metallic impurities. Specify the manufacturing route, agreed grain structure, density, surface finish and cleanliness. Agree independent analysis of a retained sample rather than accepting a generic purity certificate.

Supply the cathode drawing: disc diameter or rectangular dimensions, thickness, flatness, edge profile, fixing features and usable erosion area. For bonded targets, specify backing material, bond material, bond coverage, cooling interface and the acceptance method for voids. Agree protective packing that keeps contact materials away from the working face.

UK REACH generally applies to substances on their own, in mixtures and in articles. Substances in articles may require registration where they are intended to be released during use. Before importing or selling a target, obtain a documented assessment of its status and intended sputtering use; machining it to a drawing alone should not be your basis for assuming exemption.

Worked duty example

Illustrative example, not a quote: 200 unbonded niobium disc targets, illustrative order under 8112 99 50 90, invoiced at £30,000 free on board, with £800 of freight and insurance to the UK. The customs value is £30,800. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £30,800, so it is £6,160. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.

Inspection checklist

Composition: match each target or pack identifier to its batch analysis, review impurity results against the order, and send retained samples for the agreed independent test.

Geometry: measure thickness, diameter or width, flatness and mounting features against the cathode drawing; check tubular targets for bore dimensions and straightness.

Surface and bond: inspect the working face for scratches, inclusions, embedded debris and edge damage; for bonded targets, review the agreed bond-coverage and void-test results.

Packing and records: check seals, moisture protection, protected working faces and batch labels on arrival. Record damage before unpacking and keep photographs with the inspection record.

What goes wrong

A headline purity claim can conceal oxygen or other impurities excluded from the supplier's calculation. A certificate from another batch leaves the delivered target unverified. Incorrect thickness, edge geometry or flatness can prevent seating in the cathode, while scratches and contamination can compromise coating trials.

Bond voids or a poorly matched backing plate can impair cooling and lead to separation during use. Agree chemistry, dimensional and bond acceptance before manufacture, then trial an accepted sample in your own coating process before approving repeat supply.

Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For repeat volumes, see container programmes.