HS Code for Colloidal silver

Colloidal silver is classified under HS code 2843.10. This classification is based on the product's identity as a precious metal in a colloidal state. Chapter 28 covers inorganic chemicals and precious metal compounds. Heading 2843 specifically includes colloidal precious metals, whether or not they are chemically defined. Colloidal silver consists of elemental silver particles suspended in a liquid medium, typically demineralized water. According to the Explanatory Notes to the Harmonized System, heading 2843 covers silver in this specific physical state provided it is not put up for retail sale as a medicament. The classification is driven by the fact that the silver remains in its elemental form rather than forming a chemical compound like silver nitrate, which would fall under a different subheading within the same chapter.

Products Included

• Silver hydrosol
• Silver nanoparticles in aqueous suspension
• Colloidal silver proteins (if meeting colloidal definitions)
• Silver sol

Common Misclassification

Colloidal silver is often misclassified under HS code 3004.90, which covers medicaments for retail sale. This happens because many colloidal silver products are marketed for health benefits. However, unless the product has clear therapeutic or prophylactic uses and is packaged accordingly, it remains in 2843.10. It is also sometimes confused with HS code 3824.99, a residual heading for chemical products and preparations. Since 2843.10 specifically names colloidal precious metals, it takes precedence over the more general heading 3824 according to GRI 3(a).

FAQ

What is the HS code for Colloidal silver?

The HS code for Colloidal silver is 2843.10, which covers colloidal precious metals.

Does the concentration of silver affect the HS code?

Generally, the concentration does not change the four-digit heading 2843, but if the silver is combined with other active ingredients for medical use, it may shift to Chapter 30.