HS Code for Magnesium carbonate

Magnesium carbonate is classified under HS code 2836.99. This heading covers carbonates, peroxocarbonates, and commercial ammonium carbonate containing ammonium carbamate. Since magnesium carbonate is not specifically named in its own subheading (unlike lithium or strontium carbonates), it falls into the "other" category of 2836.99. This classification applies to the chemically produced or synthetic version of the compound. The product is an inorganic chemical used in various industries, including rubber manufacturing, cosmetics, and as an anti-caking agent in food. Classification is governed by Chapter 28, which includes separate chemically defined compounds. The purity and manufacturing process are key factors, as naturally occurring magnesium carbonate is excluded from this chapter and classified under minerals.

Products Included

• Synthetic magnesium carbonate (light or heavy)
• Precipitated magnesium carbonate
• Hydrated magnesium carbonate (synthetic)
• Industrial grade magnesium carbonate powder

Common Misclassification

Magnesium carbonate is frequently misclassified under HS code 2519.90, which covers natural magnesium carbonate (magnesite). If the product is mined and not chemically processed, it must stay in Chapter 25. Additionally, if magnesium carbonate is prepared as a medicament (e.g., an antacid), it should be classified under heading 3004. Finally, "gym chalk" which is often pure magnesium carbonate, is sometimes misclassified as sports equipment in 9506.

FAQ

What is the HS code for Magnesium carbonate?

The HS code for synthetic magnesium carbonate is 2836.99, which is the residual category for other carbonates.

How do I distinguish between 2836.99 and 2519.90?

HS code 2836.99 is for chemically manufactured magnesium carbonate, while 2519.90 is for naturally occurring magnesite, even if it has been calcined.