Sourcing BTEAC from China

Standard duty of 6% for this catalyst

Read from the UK Trade Tariff on 1 October 2026, heading 2923 covers quaternary ammonium salts and hydroxides, lecithins and other phosphoaminolipids. Benzyltriethylammonium chloride falls within the residual line 2923 90 00 90. The table shows purchasing grades under this same line, rather than separate tariff classifications.

The supplied facts show standard duty of 6% for goods from China and no anti-dumping or countervailing measure on this line. Its suspension names other substances, not benzyltriethylammonium chloride. The reference guide also records pharmaceutical relief for listed substances; a pharmaceutical customer's intended use alone is not evidence that this product qualifies.

The tariff attaches dangerous-chemical and waste export controls. Ask your customs broker to confirm their relevance to the shipment. HSE says imports have no prior informed consent notification obligation; waste shipment controls apply only to waste. Confirm the commodity code using identity, composition and form. For wider heading context, see the benzyltrimethylammonium chloride guide.

Specify benzyltriethylammonium chloride precisely

Write the full chemical name into the purchase specification. Benzyltrimethylammonium chloride is a different substance, so reject documents that substitute that name. Agree assay, whether results are reported on a dry or supplied basis, moisture, appearance and relevant residual impurities. Ask for the test methods and a certificate of analysis tied to the actual production batch.

For phase-transfer catalysis, approve a sample in your own process before accepting the production lot. Specify sealed inner packaging and an agreed sampling method. Confirm with HSE the UK REACH position for industrial quats, including annual imports of one tonne or more. Before supply in Great Britain, ensure chemical labels and packaging meet the applicable requirements.

Worked duty example

Illustrative example, not a quote: Illustrative order: 20 kg of technical-grade benzyltriethylammonium chloride under 2923 90 00 90, invoiced at £1,800 free on board, with £500 of freight and insurance to the UK. The customs value is £2,300. Duty at 6% is £138. Import VAT at 20% is charged on the customs value plus duty, £2,438, so it is £487.60. Import taxes total £625.60; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £138 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: match the full chemical name across the order, container labels, certificate of analysis and English safety data sheet.

Assay and moisture: test representative samples against the agreed methods and reporting basis; investigate differences from the supplier's certificate.

Condition: check seals, inner liners, leakage, unexpected discolouration and hard lumps before releasing the lot.

Traceability: match each container to its production batch and retain sample records. Agree the sampling scope through quality inspection.

What goes wrong

A shortened product name can conceal substitution with benzyltrimethylammonium chloride. An assay reported on a dry basis can also look acceptable while failing the buyer's supplied-material specification. A generic certificate offers little reassurance if it cannot be matched to the delivered batch.

Set acceptance criteria before ordering, then hold any mismatched or damaged lot for investigation. Do not accept a supplier's description of the product as a pharmaceutical intermediate as proof of tariff relief. Confirm identity and customs treatment before shipment.

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.