HS Code for Silica sand

Silica sand is classified under HS code 2505.10. Chapter 25 of the Harmonized System covers salt, sulfur, earths, and stone, as well as plastering materials, lime, and cement. Heading 2505 specifically includes natural sands of all kinds, whether or not colored, other than metal-bearing sands of Chapter 26. Silica sand, also known as industrial sand or quartz sand, is characterized by its high silicon dioxide (SiO2) content. The classification under 2505.10 is appropriate for natural sands where the silica content is the primary defining feature, regardless of whether the sand has been washed, heat-treated, or graded by size. This classification follows GIR 1 and the specific subheading text for silica sands and quartz sands. It is essential that the sand is in its natural state or has only undergone the processes permitted by Note 1 to Chapter 25, such as washing or mechanical screening, without changing the essential mineralogical structure of the product.

Products Included

• Industrial silica sand for glass manufacturing
• Foundry sand for metal casting molds
• Hydraulic fracturing sand (frac sand) for oil and gas
• Quartz sand for filtration systems
• Ground silica (silica flour) if not chemically modified
• Colored natural silica sands for architectural finishes

Common Misclassification

Silica sand is often confused with HS code 2506.10, which covers quartz in its bulk or crude form. The distinction lies in the physical state; 2505 is for sand (naturally disintegrated rock), while 2506 is for quartz in blocks or larger fragments. Another misclassification occurs with 2601, particularly when the sand has a high iron content; however, if it is primarily used for its silica properties rather than for metal extraction, 2505.10 remains correct. Additionally, synthetic silica or chemically precipitated silica is classified under 2811.22.

FAQ

What is the HS code for silica sand?

The HS code for silica sand is 2505.10, which specifically covers natural silica and quartz sands.

Is frac sand classified differently than glass sand?

No, both frac sand and glass sand are classified under 2505.10 as long as they are natural silica sands that have not been coated or chemically treated.