Sourcing Wollastonite Powder from China

Zero duty, with classification checks

Read from the UK Trade Tariff on 6 November 2026, heading 2530 covers mineral substances not elsewhere specified or included. Its residual line 2530 90 70 90 carries 0% duty for goods from China, with no anti-dumping or countervailing duty or suspension recorded in the supplied data. The table shows purchasing grades against that same provisional line, rather than separate tariff subdivisions.

The tariff attaches import and export waste controls. Waste shipment controls apply only if the material is waste. For imports into England under notification controls, the exporter applies through the dispatch country's competent authority; shipment requires consent from the Environment Agency and other authorities involved. For Chinese material sold as recovered powder or residue, confirm its waste status and the applicable procedure with your customs broker before ordering.

Use the mineral composition, manufacturing process and any surface treatment to confirm the commodity code. Do not assume a coated or formulated powder has the same classification as untreated mineral powder. For neighbouring products within the wider heading, see our vermiculite and perlite guide.

Specify mineral identity and particle shape

Specify natural wollastonite rather than accepting a generic calcium silicate description. Agree mineral purity, particle-size distribution, particle aspect ratio, whiteness, iron content, moisture and any surface treatment. For ceramic use, approve a firing trial; for polymer fillers, test dispersion and performance in your own formulation.

Ask for the deposit source, processing route, batch analysis and retained sample. Agree testing for quartz and asbestos contamination with a laboratory experienced in mineral powders. Before a first import, consider whether UK REACH registration is required for the particular substance; establish its identity and processing rather than relying on a supplier's general compliance statement.

For handling that could harm health, UK law requires control of risks to workers. Assess bag opening, tipping and mixing before use, and plan dust containment and extraction around those tasks.

Worked duty example

Illustrative example, not a quote: Illustrative order: 25 tonnes of uncoated ceramic-grade wollastonite powder under 2530 90 70 90, invoiced at £11,000 free on board, with £2,400 of freight and insurance to the UK. The customs value is £13,400. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £13,400, so it is £2,680. 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 batch analysis, mineral identification and contamination reports with the approved sample and declared deposit.

Grading: check particle-size distribution and needle shape using the agreed methods; a mesh description alone does not establish particle aspect ratio.

Condition: check moisture, hard agglomerates, foreign matter and colour against the agreed acceptance criteria.

Packing: inspect liners, seams, seals and pallet stability on arrival; reconcile bag identification with batch records and retain a sample before production use.

What goes wrong

A powder can match the advertised fineness but have shorter particles than the approved sample, changing reinforcement or processing behaviour. A different deposit can alter colour, iron content or contamination. Compare production-lot results and trial performance, rather than accepting a sample report as evidence for the shipment.

Moisture ingress creates lumps and poor dispersion; damaged seams release dust during unloading. Hold suspect bags apart, photograph the damage and test retained samples before blending the delivery into stock. Agree sampling and acceptance criteria through testing and certification.

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.