HS Code for Natural magnesium sulfate

Natural magnesium sulfate, occurring as minerals like kieserite or epsomite, is classified under HS code 2530.20. This code is situated in Chapter 25, which covers salt, sulfur, earths and stone, plastering materials, lime, and cement. The classification is specific to naturally occurring mineral substances that have not been chemically processed beyond what is allowed for Chapter 25, such as washing, grinding, or heat treatment to remove impurities. Kieserite is a magnesium sulfate monohydrate, while epsomite is the heptahydrate form, commonly known as natural Epsom salt. These minerals are often used in agriculture as fertilizers to correct magnesium deficiencies in soil or in various industrial applications. It is crucial to distinguish these natural minerals from chemically synthesized magnesium sulfate. The HS system prioritizes the origin of the substance; if it is mined and remains in its natural mineral state, it stays in Chapter 25.

Products Included

• Natural kieserite
• Natural epsomite
• Crude magnesium sulfate minerals
• Ground natural magnesium sulfate
• Natural Epsom salts (unrefined)
• Magnesium sulfate mineral concentrates

Common Misclassification

HS code 2530.20 is frequently confused with 2833.21, which covers chemically pure or synthetic magnesium sulfate. If the product has been produced through a chemical reaction or is highly refined to a pharmaceutical grade, it must be classified in Chapter 28. It is also sometimes confused with 3104.90 if sold specifically as a potassic fertilizer blend.

FAQ

What is the HS code for natural magnesium sulfate?

The HS code for natural magnesium sulfates like kieserite and epsomite is 2530.20.

Is pharmaceutical-grade Epsom salt classified here?

Generally no; pharmaceutical-grade or highly refined synthetic magnesium sulfate is classified under HS code 2833.21.