HS Code for Chemical catalysts

Chemical catalysts are classified under HS code 3815.19 when they are supported catalysts that do not utilize nickel or precious metals as their active substance. Heading 3815 covers reaction initiators, reaction accelerators, and catalytic preparations. The structure of this heading is based on the active component of the catalyst. Subheading 3815.11 is for nickel-based catalysts, and 3815.12 is for those using precious metals (like platinum, palladium, or rhodium). Subheading 3815.19 serves as the category for all other supported catalysts, such as those using cobalt, molybdenum, vanadium, or various oxides on a substrate like silica, alumina, or activated carbon. The supported nature means the active chemical is dispersed on a carrier material to increase surface area and efficiency. This classification is vital for the chemical industry, as it distinguishes between different chemical compositions which may have varying duty rates or environmental regulations. Classification is determined by GRI 1 and 6 based on the chemical composition of the active species.

Products Included

• Cobalt-based catalysts on an alumina support
• Molybdenum catalysts for hydrodesulfurization
• Vanadium pentoxide catalysts for sulfuric acid production
• Polymerization catalysts on a silica carrier
• Oxidation catalysts using non-precious metal oxides

Common Misclassification

The most common error is misclassifying these under 3815.12 if there is any trace of precious metal; however, 3815.12 is only for catalysts where a precious metal is the primary active constituent. Another error is using 2843 for precious metal compounds, but if the substance is a prepared catalyst, Chapter 38 takes precedence. Additionally, unsupported catalysts (those consisting of a single chemical element or compound) may be classified in Chapter 28 or 29 depending on their purity and composition, rather than 3815.

FAQ

What is the HS code for chemical catalysts?

The HS code for supported catalysts with an active substance other than nickel or precious metals is 3815.19.

What if the catalyst is just a pure metal mesh?

If it is an unsupported metal mesh (like a platinum gauze), it is usually classified by its constituent material in Chapter 71 or the respective base metal chapter, rather than as a catalytic preparation in 3815.