HS Code for Magnesium sulphate

Magnesium sulphate is classified under HS code 2833.21. This code is situated within Chapter 28, which covers inorganic chemicals, precious metal compounds, and radioactive elements. Heading 28.33 specifically covers sulphates, alums, and peroxosulphates. Subheading 2833.21 is the specific designation for sulphates of magnesium. This classification applies to the chemical compound regardless of its hydration state, covering both anhydrous magnesium sulphate and the heptahydrate form, commonly known as Epsom salts. The classification is driven by the chemical composition of the substance. It is important to distinguish between chemically pure or commercially pure magnesium sulphate and natural mineral forms that have not been chemically processed. Under the General Rules for Interpretation (GRI), once a mineral is chemically treated to produce a specific compound, it is classified in Chapter 28. Magnesium sulphate is widely used in agriculture as a soil amendment to correct magnesium deficiencies, in medicine as a therapeutic bath salt or laxative, and in various industrial processes like leather tanning and textile dyeing. Regardless of the end-use, if the product is the chemical compound magnesium sulphate, it remains under 2833.21, unless it is prepared as a fertilizer in a manner that moves it to Chapter 31.

Products Included

• Epsom salts (Magnesium sulphate heptahydrate)
• Anhydrous magnesium sulphate
• Kieserite (if chemically processed/purified)
• Technical grade magnesium sulphate
• Pharmaceutical grade magnesium sulphate

Common Misclassification

Magnesium sulphate is frequently confused with natural magnesium sulphates like kieserite or epsomite, which are classified under 2530.21 if they are in their natural state and have not been chemically processed. It is also sometimes misclassified under 3104.90 if it is sold specifically as a potassic fertilizer blend, though pure magnesium sulphate remains in 2833.21.

FAQ

What is the HS code for Magnesium sulphate?

The specific HS code for magnesium sulphate is 2833.21.

Is Epsom salt classified differently than industrial magnesium sulphate?

No, both Epsom salt (the heptahydrate form) and industrial-grade magnesium sulphate are classified under HS code 2833.21, as they are chemically the same compound.