HS Code for Nepheline syenite

Nepheline syenite is classified under HS code 2529.30, which specifically covers leucite, nepheline, and nepheline syenite. This classification falls within Chapter 25, dedicated to salt, sulfur, earths, and stone, as well as plastering materials, lime, and cement. The primary reason for this classification is the mineralogical nature of the product. Nepheline syenite is a holocrystalline plutonic rock that consists largely of nepheline and alkali feldspar. Under the General Rules of Interpretation (GRI 1), products are classified according to the terms of the headings and any relative section or chapter notes. Since heading 25.29 explicitly names nepheline syenite, it is the correct designation. Furthermore, the product must remain in its crude state or have undergone only basic processing such as crushing, grinding, or washing to remain in Chapter 25. If the material were chemically altered or refined into a high-purity chemical, it might shift to Chapter 28, but as a naturally occurring mineral used primarily in the glass and ceramics industries as a flux, 2529.30 is the standard international classification.

Products Included

• Crushed nepheline syenite for glass manufacturing
• Ground nepheline syenite for ceramic glazes
• Nepheline syenite powder used as a functional filler in paints
• Raw nepheline syenite rock aggregates
• Micronized nepheline syenite for polymer applications

Common Misclassification

Nepheline syenite is frequently misclassified under HS code 2529.10, which is reserved for feldspar. While nepheline syenite contains feldspar, it is a distinct geological entity. Another common error is using HS code 2505.10 for silica sands, especially when the material is used in glassmaking; however, nepheline syenite is silica-deficient by definition. Additionally, if the product is processed into a specific shape for construction, it might be incorrectly placed in Chapter 68.

FAQ

What is the HS code for Nepheline syenite?

The HS code for Nepheline syenite is 2529.30, which falls under the category of leucite, nepheline, and nepheline syenite.

Does the particle size affect the HS code for this mineral?

Generally, no. As long as the processing is limited to mechanical grinding or crushing (even to a fine powder), it remains under 2529.30. However, if it is mixed with other chemicals, it may be classified as a prepared additive.