HS Code for Fused magnesia
Fused magnesia is classified under HS code 2519.90. This classification falls within Chapter 25, which covers salt, sulfur, earths, and stone, specifically heading 2519 for natural magnesium carbonate (magnesite) and magnesium oxide. Fused magnesia is produced by the fusion of magnesite or caustic calcined magnesia in electric arc furnaces at temperatures exceeding 2750 degrees Celsius. This process results in a high-density, high-purity crystalline material with superior refractory properties. The HS code 2519.90 is a residual category for magnesium oxide that is not natural magnesium carbonate. It includes both fused magnesia and dead-burned (sintered) magnesia. The classification is justified because the material remains a mineral product of Chapter 25, even though it has undergone high-heat processing to alter its physical structure, provided it has not been further processed into a finished refractory article of Chapter 68 or 69.
Products Included
- Electrically fused magnesium oxide
- Dead-burned (sintered) magnesia
- High-purity synthetic magnesia
- Calcined magnesite (other than natural)
- Fused magnesia grains for heating elements
Common Misclassification
Fused magnesia is often misclassified under HS code 2519.10, which is strictly reserved for natural magnesium carbonate (magnesite) in its raw or crushed state. Another common error is classifying it under HS code 2816.10, which covers magnesium hydroxide and peroxide; however, fused magnesia is an oxide, not a hydroxide. Additionally, if the magnesia is mixed with binders to form a ready-to-use refractory mortar, it should be classified under HS code 3816.00 rather than 2519.90.
FAQ
What is the HS code for fused magnesia?
The HS code for fused magnesia is 2519.90, which also covers dead-burned and other magnesium oxides.
Is fused magnesia considered a chemical or a mineral?
For customs purposes, fused magnesia is classified as a mineral product under Chapter 25, despite the high-temperature industrial processing used to create it.
Industry
Frequently Asked Questions
What is the HS code for Fused magnesia?
The HS code for Fused magnesia is 251990 (Magnesia, fused or dead-burned (sintered); whether or not containing small quantities of other oxides added before sintering, other magnesium oxide, whether or not pure, (not natural magnesium carbonate)).
How do I classify Fused magnesia for customs?
Fused magnesia is classified under HS code 251990 — Magnesia, fused or dead-burned (sintered); whether or not containing small quantities of other oxides added before sintering, other magnesium oxide, whether or not pure, (not natural magnesium carbonate). This is a 6-digit subheading level code.
Is the HS code for Fused magnesia the same in all countries?
The base HS code 251990 for Fused magnesia is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.