Sourcing pyrolytic carbon powder from China

Duty and waste controls

Read from the UK Trade Tariff on 4 October 2026, heading 2803 covers carbon blacks and other forms of carbon not elsewhere specified or included. Its single commodity line, 2803 00 00 00, carries 0% duty for goods from China. The supplied tariff record lists no anti-dumping or countervailing duty and no suspension. The table therefore contains only that line.

The tariff attaches import and export waste controls. For powder offered from China as recovered char or waste-derived material, ask your customs broker to confirm whether the import waste control applies. Where notification controls apply to a shipment into England, shipment must await consent from the Environment Agency and the other competent authorities involved. Confirm the attached export control separately before any return shipment to China.

Send the composition, manufacturing process, physical form and intended use to your broker to confirm the commodity code. Do not select the code from the commercial name alone. For the wider heading, see our glassy carbon powder guide.

Specify the carbon structure and powder properties

Ask what the supplier means by pyrolytic carbon powder: the precursor, deposition or pyrolysis process, subsequent heat treatment and milling route. Request evidence of the carbon structure, such as Raman or diffraction results, tied to the offered batch. Record whether the material is manufactured powder, milled coating material or recovered char.

Agree carbon content, ash, moisture, sulphur, metallic impurities, particle size distribution and the test methods. Include the coarse tail and agglomerates rather than accepting only an average particle size. Where performance depends on conductivity or surface area, agree the measurement method and trial the powder in your own process.

Confirm the UK REACH registration position for the identified substance and importing business: registration is per substance and legal entity. Chemical classification is the supplier's responsibility, including importers. Before supply in Great Britain, ensure the powder is correctly labelled and packaged under the applicable chemical rules; request the safety data sheet and supporting classification information.

Worked duty example

Illustrative example, not a quote: Illustrative order: 20 kg of pyrolytic carbon powder under 2803 00 00 00, invoiced at £2,000 free on board, with £300 of freight and insurance to the UK. The customs value is £2,300. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £2,300, so it is £460. 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

Identity: compare the batch certificate, process description and structural test results with the approved sample; investigate any change of precursor or heat treatment.

Powder: sample across the batch and check particle size distribution, agglomerates, ash, moisture and agreed impurities using the contracted methods.

Performance: compare conductivity or other agreed application results with the approved sample under the same preparation and test conditions.

Packing: check sealed liners, powder leakage, moisture ingress, net weight and batch identification; reconcile labels with the safety information. See our inspection guide.

What goes wrong

A supplier may use the same sales name for powders with different precursors, heat treatment or contamination levels. A sample can perform well while the shipment contains more ash, metal contamination or coarse particles. Make the approved specification and batch acceptance tests part of the purchase order.

Milling and packing can introduce grit or metal, while moisture and agglomeration can change dispersion and handling. Keep a retained sample from the inspected batch and compare it with arrival samples before releasing the material into production. Investigate recovered-char offers before treating them as equivalent to the approved powder.

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.