Sourcing Boron Powder from China

Boron powder duty and classification

Read from the UK Trade Tariff on 1 October 2026, heading 2804 covers hydrogen, rare gases and other non-metals. Elemental boron uses 2804 50 10 00 and carries 4% duty for goods from China. The supplied record shows no anti-dumping or countervailing duty and no suspension for boron. The table describes powder specifications sharing this same tariff line.

The tariff attaches import and export waste controls. Waste shipment controls apply only where the material is waste. For a China-to-England shipment subject to notification controls, the exporter must apply through the dispatch country's competent authority; shipment can begin after consent from the Environment Agency and the other authorities involved. Confirm the applicable procedure with your customs broker before buying recovered or discarded powder.

Describe the material as elemental boron and provide its composition and physical form when confirming the commodity code. Do not treat boron carbide, boron nitride or borates as interchangeable products. See the selenium and wider heading guide and the explanation of UK import duty and VAT.

Specify boron assay, form and particle size

State whether you need amorphous or crystalline elemental boron, the intended process, boron assay, oxygen and moisture limits, named metallic impurities and particle size distribution. Agree the analytical methods and whether results are reported on a dry basis. Ask for a batch certificate of analysis and a retained sample rather than relying on a generic product sheet.

For Great Britain, chemical classification is the importer's responsibility regardless of quantity. Businesses importing a tonne or more of a substance annually have UK REACH registration responsibilities; a supplier-appointed representative may take on importer duties. Establish who covers your substance and supply chain before shipment. Request the safety data sheet and reconcile it with the exact powder specification.

Worked duty example

Illustrative example, not a quote: Illustrative order: 25 kg of boron powder under 2804 50 10 00, invoiced at £15,000 free on board, with £2,000 of freight and insurance to the UK. The customs value is £17,000. Duty at 4% is £680. Import VAT at 20% is charged on the customs value plus duty, £17,680, so it is £3,536. Import taxes total £4,216; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £680 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: check elemental boron, physical form and batch references against the order, certificate and container labels.

Assay: check boron content, oxygen, moisture and agreed impurities using the contracted methods; arrange independent testing of a representative batch sample.

Particle size: check the distribution and oversized particles against the specification, and record agglomeration rather than accepting a nominal powder size alone.

Packing: check seals, liners, leakage, net weight and batch traceability on arrival. Agree sampling and acceptance records through quality inspection.

What goes wrong

A powder can match the quoted boron assay yet fail the buyer's process because its physical form, oxygen content or particle size differs. Certificates may describe a reference sample rather than the shipped batch. Damp packing and agglomeration can also undermine an otherwise acceptable specification.

Agree acceptance methods before ordering and compare a trial sample with the delivered batch. Hold material with broken seals, conflicting batch references or unexplained test differences for investigation before using it or mixing it with accepted stock.

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.