Commodity code · Chapter 28

28431090 — Colloidal precious metals

Commodity code 28431090 covers colloidal precious metals, within HMRC chapter 28 (inorganic chemicals). 3 UK businesses filed customs declarations against this code in the last six months, across 3 counties and 3 towns.

Refreshed every 24 hours · last run 25/08/2026 at 11:41HMRC release in view: Jun 26Snapshot: 2026-08-25.1

3Businesses trading

3Counties

3Towns

10Import declarations

Counties trading under 28431090

Where the businesses using this commodity code are based.

Businesses importing under 28431090

The most active 3 of 3. Log in to see them all.

Most active business

TOTAL LAB SUPPLIES LTD

St Helens (St. Helens), Merseyside 7 import declarations Imports only WA9 *Ch. 28Ch. 29Ch. 38Ch. 39 Active in 6 of the last 6 months

Recent shipments include diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits (excl. for malaria, for zika and other diseases transmitted by mosquitoes of the genus a, instruments, apparatus and models designed for demonstrational purposes, e.g. in education or exhibitions, unsuitable for other uses (excl. ground flying trainers of heading 8805, collectors' pieces of heading 9705 and antiques of an age > 100 years.

▲ Expected to increase by 0.0% over the next 3 months, based on their last 2 years

Imports — 2 years of monthly activity7 in the last 6 months

Exports — 2 years of monthly activity0 in the last 6 months

Earlier monthsLast 6 monthsOur forecast for the next 3

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Among the most active

METALCHEMY LIMITED

Brent, Greater London 2 import declarations Imports only NW10 *Ch. 28Ch. 38Ch. 84Ch. 90 Active in 1 of the last 6 months

Recent shipments include chemical products and preparations of the chemical or allied industries, incl. those consisting of mixtures of natural products, n.e.s., mixing, kneading, crushing, grinding, screening, sifting, homogenising, emulsifying or stirring machines, n.e.s. (excl. industrial robots).

▲ Expected to increase by 0.0% over the next 3 months, based on their last 2 years

Imports — 2 years of monthly activity2 in the last 6 months

Exports — 2 years of monthly activity0 in the last 6 months

Earlier monthsLast 6 monthsOur forecast for the next 3

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Among the most active

RAPIDX BIO LTD

Cambridge (Cambridge), Cambridgeshire 1 import declarations Imports only CB4 *Ch. 28Ch. 30Ch. 35Ch. 38 Active in 1 of the last 6 months

Recent shipments include colloidal precious metals, antisera and other blood fractions.

▼ Expected to slow by 100.0% over the next 3 months, based on their last 2 years

Imports — 2 years of monthly activity1 in the last 6 months

Exports — 2 years of monthly activity0 in the last 6 months

Earlier monthsLast 6 monthsOur forecast for the next 3

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0 more businesses trade under 28431090

About commodity code 28431090

What goods does commodity code 28431090 cover?

Colloidal precious metals. It sits in HMRC chapter 28, inorganic chemicals. Every UK customs declaration carries a code like this one to classify the goods being moved.

How many UK businesses import under 28431090?

3 businesses filed customs declarations against code 28431090 in the last six months, spread across 3 counties and 3 towns, totalling 10 import declarations.

Which parts of the UK trade the most under 28431090?

The busiest counties are Greater London (1 businesses), Cambridgeshire (1 businesses), Merseyside (1 businesses). Open any county to see the towns and the businesses behind it.