Sourcing zirconium carbide powder from China

Duty and chemical import checks

Read from the UK Trade Tariff on 1 October 2026, heading 2849 covers carbides, whether or not chemically defined. Zirconium carbide powder falls within the other-carbides line, 2849 90 90 00, carrying 4% duty for goods from China. The supplied record lists no anti-dumping or countervailing duty and no suspension. The table shows purchasing variants within this same commodity line.

The tariff attaches import and export waste controls. Waste shipment controls apply only if the material is waste. For powder imported from China into England under notification controls, the exporter must apply to the dispatch country's competent authority for consent. Confirm the powder's waste status and applicable requirements with your customs broker before shipment.

Confirm composition, additives and physical form before choosing the commodity code. Check UK REACH coverage with HSE, including any registration requirements and whether an only representative covers your imports. Chemical classification is required regardless of quantity. For the wider carbide heading, see titanium carbide powder.

Specify carbon balance and powder distribution

Describe the intended ceramic, refractory or laboratory process. Agree zirconium carbide content, total and free carbon, oxygen, metallic impurities and particle-size distribution. Ask the supplier to distinguish measured batch results from nominal catalogue values and to identify any additives.

Agree the particle-size test method, sample preparation and reporting basis. Specify sealed inner packaging, batch identification and a retained sample. Trial the powder in your own process before accepting a repeat-order specification.

Worked duty example

Illustrative example, not a quote: Illustrative order: 1 tonne of zirconium carbide powder under 2849 90 90 00, invoiced at £30,000 free on board, with £2,500 of freight and insurance to the UK. The customs value is £32,500. Duty at 4% is £1,300. Import VAT at 20% is charged on the customs value plus duty, £33,800, so it is £6,760. Import taxes total £8,060; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £1,300 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: check that the purchase order, container labels and batch certificate describe zirconium carbide powder and identify the same batch.

Chemistry: compare independent carbon, oxygen and impurity results with the agreed specification and supplier certificate.

Particle size: test representative samples using the agreed method; check coarse particles and agglomerates as well as the reported average.

Packing: check seals, leakage, moisture and caking on arrival; record container condition before opening. Use an agreed inspection plan.

What goes wrong

A purity figure alone leaves carbon balance, oxygen and coarse particles unresolved. Different sample preparation can make particle-size reports difficult to compare. Caked powder or an undeclared additive can also change how a batch behaves in your process.

Keep suspect batches separate while you compare retained samples, arrival samples and production trial results. Agree acceptance criteria and the remedy for an out-of-specification batch before ordering.

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.