Quartz powder Hs Code

Quartz powder harmonized system code

Product Overview Quartz powder, classified under HS Code 250610, is a finely milled form of naturally occurring crystalline silica predominantly composed of silicon dioxide (SiO2). This industrial-grade powder exhibits high purity levels typically exceeding 99%, with particle sizes ranging from micron to sub-micron scale, ensuring uniformity and consistency in physical attributes such as hardness, chemical inertness, and thermal stability. The product encompasses subcategories including ground quartz, quartz flour, and finely crushed quartz, each differentiated by granulometry and processing methods such as air classification and sieving. Quartz powder serves critical roles across multiple sectors: in the food industry as an anti-caking agent and filler; in manufacturing for glass, ceramics, and abrasives; and within chemical processing as a raw material for silicon-based compounds. Its competitive advantage lies in consistent quality control, minimal contaminant levels, and compliance with international chemical safety standards, positioning it as a reliable supply source for importers, exporters, and industrial manufacturers seeking high-grade mineral inputs. HS Code Classification & Trade Specifications The HS Code 250610 falls under Chapter 25 (Salt; Sulfur; Earths and Stone; Plastering Materials, Lime and Cement), specifically within Heading 2506 (Quartz (other than natural sands); quartzite; and other pyrogenic silica). The subheading ‘10’ designates quartz powder, reflecting its mineralogical identity and processing state. This classification is based on the product’s mineral content, particle fineness, and exclusion from other silica forms such as sands or raw quartz lumps. Commercial shipments typically employ moisture-resistant, multi-layered kraft paper bags or bulk containers with desiccants to prevent caking and preserve powder integrity during transit. Standard quality parameters include SiO2 content ≥ 99.0%, moisture ≤ 0.5%, and particle size distribution aligned with ISO 14688-1 standards. Compliance with WTO trade rules and adherence to customs documentation protocols—such as accurate product description, country of origin labeling, and conformity certificates—are essential to facilitate seamless cross-border transactions. These specifications ensure accurate tariff classification, risk assessment, and regulatory compliance by customs brokers and trade compliance officers globally.

Quartz powder Chapter Note

1.- Except where their context or Note 4 to this Chapter otherwise requires, the headings of this Chapter cover only products which are in the crude state or which have been washed (even with chemical substances eliminating the impurities without changing the structure of the product), crushed, ground, powdered, levigated, sifted, screened, concentrated by flotation, magnetic separation or other mechanical or physical processes (except crystallisation), but not products which have been roasted, calcined, obtained by mixing or subjected to processing beyond that mentioned in each heading. The products of this Chapter may contain an added anti-dusting agent, provided that such addition does not render the product particularly suitable for specific use rather than for general use. 2.- This Chapter does not cover : (a) Sublimed sulphur, precipitated sulphur or colloidal sulphur (heading 28.02); (b) Earth colours containing 70 % or more by weight of combined iron evaluated as Fe2O3 (heading 28.21); (c) Medicaments or other products of Chapter 30; (d) Perfumery, cosmetic or toilet preparations (Chapter 33); (e) Dolomite ramming mix (heading 38.16); (f) Setts, curbstones or flagstones (heading 68.01); mosaic cubes or the like (heading 68.02); roofing, facing or damp course slates (heading 68.03); (g) Precious or semi-precious stones (heading 71.02 or 71.03); (h) Cultured crystals (other than optical elements) weighing not less than 2.5 g each, of sodium chloride or of magnesium oxide, of heading 38.24; optical elements of sodium chloride or of magnesium oxide (heading 90.01); (ij) Billiard chalks (heading 95.04); or (k) Writing or drawing chalks or tailors' chalks (heading 96.09). 3.- Any products classifiable in heading 25.17 and any other heading of the Chapter are to be classified in heading 25.17. 4.- Heading 25.30 applies, inter alia, to : vermiculite, perlite and chlorites, unexpanded; earth colours, whether or not calcined or mixed together; natural micaceous iron oxides; meerschaum (whether or not in polished pieces); amber; agglomerated meerschaum and agglomerated amber, in plates, rods, sticks or similar forms, not worked after moulding; jet; strontianite (whether or not calcined), other than strontium oxide; broken pieces of pottery, brick or concrete.