HS Code for Kyanite

Kyanite is classified under HS code 2508.50, which specifically covers andalusite, kyanite, and sillimanite. This classification is governed by the General Rules of Interpretation (GRI) 1, which dictates that classification is determined by the terms of the headings and any relative section or chapter notes. As a naturally occurring mineral, kyanite falls under Chapter 25, which encompasses salt, sulfur, earths, and stone. The mineral is an aluminosilicate often used in the production of refractory materials due to its ability to expand significantly when heated, forming mullite. The classification remains consistent whether the kyanite is in its raw state or has undergone calcination (heating to high temperatures to change its physical properties). Because it is primarily traded as an industrial mineral for high-heat applications rather than an ore for aluminum extraction, it is excluded from Chapter 26 and placed firmly within the earths and clays of Chapter 25.

Products Included

• Raw kyanite ore
• Calcined kyanite
• Kyanite concentrates
• Kyanite sand and flour
• Andalusite and sillimanite (under the same subheading)

Common Misclassification

Kyanite is frequently misclassified under HS code 2606.00, which covers aluminum ores and concentrates. While kyanite contains aluminum, it is not commercially processed as an ore for aluminum metal production, making 2606.00 incorrect. Another common error is using HS code 3816.00, which is for refractory cements and mortars. While kyanite is an ingredient in these products, the raw mineral itself must stay in Chapter 25. Additionally, kaolin and other clays under 2507.00 are sometimes confused with kyanite, but kyanite's specific crystalline structure and chemical formula (Al2SiO5) distinguish it from kaolinitic clays.

FAQ

What is the HS code for Kyanite?

The primary HS code for Kyanite is 2508.50, which includes andalusite and sillimanite.

Does calcining kyanite change its HS code?

No, HS code 2508.50 explicitly includes these minerals whether or not they have been calcined.