Chapter 2505 — Customs Tariff Headings
Products classified under Tariff item 25.05
Ceramic Tile Silica Sand
Fine-ground natural silica sand for ceramic body and glaze formulations, processed only by grinding and screening. The sand is not calcined or mixed, and its natural origin keeps it within heading 25.05 under Chapter 25 Note 1.
2505.10.00Colored Silica Sand for Landscaping
Naturally coloured silica sand, coloured by mineral deposits such as iron oxides, used for landscaping. The sand is in its natural state with no artificial colouring or processing beyond washing, fitting Chapter 25 Note 1.
2505.10.00Construction Silica Sand
Natural silica sand for construction applications such as mortar and concrete admixtures, processed only by washing and screening. The sand is not a processed aggregate and meets Chapter 25 Note 1's minimal processing criteria.
2505.10.00Fiberglass Production Silica Sand
High-silica natural sand with at least 95% SiO2 and low iron content, processed only by washing and screening to meet E-glass fiberglass specifications. The product is in a crude or minimally processed state consistent with Chapter 25 Note 1, and its natural origin and lack of chemical treatment keep it within heading 25.05.
2505.10.00Frac Sand Silica 100 Mesh
High-sphericity natural silica sand, 100 mesh, from quartzite, used for hydraulic fracturing. The sand is washed and sieved only, with no chemical or thermal processing, fitting Chapter 25 Note 1.
2505.10.00Glass Bottle Grade Silica Sand
Natural silica sand with high purity (95%+ SiO2, ≤0.6% Fe2O3) used for container glass production. The sand is washed and screened only, with no chemical alteration, meeting Chapter 25 Note 1 requirements for minimal processing.
2505.10.00Glass Grade Silica Sand
Low-iron natural silica sand (<0.02% Fe2O3) for container glass production, processed only by washing and screening. The sand is in a crude state and not mixed, meeting Chapter 25 Note 1.
2505.10.00High-Purity Silica Sand for Glass Manufacturing
Ultra-pure natural silica sand with 95%+ SiO2 and low iron oxide, processed only by washing and grading for high-clarity glass applications. The product is not roasted, calcined, or mixed, aligning with Chapter 25 Note 1's scope for crude or minimally processed minerals.
2505.10.00Industrial Silica Sand 99.8% Purity
High-purity natural silica sand with 99.8% SiO2, sourced from quartz deposits and minimally processed for uniformity. The sand is washed and screened only, complying with Chapter 25 Note 1.
2505.10.00Low-Iron Silica Sand for Solar Panel Glass
Low-iron natural silica sand (≥95% SiO2, ≤0.6% Fe2O3) for solar panel float glass, processed only by washing and screening. The sand's natural state and minimal processing comply with Chapter 25 Note 1, and it is not a metal-bearing sand of Chapter 26.
2505.10.00Optical Grade Silica Sand
Premium natural silica sand with over 95% SiO2 and minimal iron oxide, used for optical glass manufacturing. The sand is washed and sieved only, with no further processing, fitting Chapter 25 Note 1's allowance for mechanical processes.
2505.10.00Paint Filler Silica Sand
Micaceous natural silica sand used as a filler in architectural paints, processed only by washing and grinding. The sand is not precipitated or chemically treated, fitting Chapter 25 Note 1.
2505.10.00Playground Silica Sand
Rounded natural silica sand grains, 0.3-0.8mm, for playground safety surfaces, processed only by washing and screening. The sand is not artificially coloured or treated, meeting Chapter 25 Note 1.
2505.10.00Premium Silica Sand for Tableware Crystal Glass
High-grade natural silica sand exceeding 95% silica with low iron oxide, used for crystal glass tableware. The sand is minimally processed (washed, screened) and not mixed or chemically altered, meeting Chapter 25 Note 1 requirements.
2505.10.00Ultra-Clean Silica Sand for Flat Glass Production
Naturally occurring silica sand with 95%+ SiO2 and low iron, for flat glass production. The sand is processed only by washing and sizing, consistent with Chapter 25 Note 1, and is not a metal-bearing sand.
2505.90.00Aquarium Substrate Sand
> Natural aragonite sand for marine aquariums, composed of calcium carbonate and sourced from natural deposits. It is washed and screened but not chemically altered, qualifying as a natural sand of heading 25.05. Its pH-buffering property is inherent to the mineral composition, not a result of added substances.
2505.90.00Art Sand for Crafts
> Naturally colored sands for craft and sand art applications, with particle sizes between 0.1 and 0.5 mm. The sands are washed, dried, and screened but not artificially dyed or chemically processed, keeping them within the scope of natural sands of heading 25.05.
2505.90.00Beach Sand for Terrariums
> Fine natural beach sand collected for reptile terrariums and bioactive enclosures, mimicking coastal substrates. The sand is washed and heat-treated to remove pathogens but not chemically altered, qualifying as a natural sand of heading 25.05. It contains no added metals or synthetic components.
2505.90.00Construction Mason Sand
> Clean natural sand for mortar mixing in bricklaying, with a consistent fineness modulus for uniform workability. The sand is washed and screened but not subjected to any chemical or thermal processing, keeping it within the scope of natural sands of heading 25.05.
2505.90.00Decorative River Sand Pebbles
> Rounded natural river sand pebbles for aquariums and decorative displays, naturally tumbled by water action and size-graded to 2-5 mm. The pebbles are washed and screened but not crushed or chemically processed, qualifying as natural sands of heading 25.05.
2505.90.00Equestrian Arena Sand
> Natural quartz sand for horse riding arena footing, selected for its dust-free and well-draining properties. The sand is washed and screened but not chemically treated, qualifying as a natural sand of heading 25.05. Its angular grain shape is natural, not a result of crushing.
2505.90.00Golf Bunker Sand
> Specially selected natural silica sand for golf course bunkers, with medium-coarse angular grains for optimal playability. The sand is washed and screened but not chemically or thermally processed, keeping it within the scope of natural sands of heading 25.05.
2505.90.00Industrial Filter Sand Gravel
> Natural graded sand and gravel mix for large-scale water treatment filters, used as multi-layer filtration media. The components are washed and screened but not chemically processed, and the mix is a combination of natural sands and pebbles of heading 25.05 and 25.17.
2505.90.00Natural Silica Flour
> Ground natural quartz to flour fineness (-200 mesh) for use as fillers in various applications. The quartz is mechanically ground and classified but not chemically processed, qualifying as a natural sand powder of heading 25.05. It is not calcined or otherwise transformed.
2505.90.00Olivine Sand for Foundry Molding
> Natural olivine sand used in foundry molding for its thermal stability and resistance to cracking in high-heat applications. The sand is washed and screened but not chemically processed, qualifying as a natural sand of heading 25.05. Its magnesium-iron silicate composition is naturally occurring.
2505.90.00Playground Safety Sand
> Washed natural river sand designed for children's playgrounds, meeting safety standards for fall cushioning. The sand is washed and screened but not chemically treated, qualifying as a natural sand of heading 25.05. Its rounded grains are naturally occurring, not crushed.
2505.90.00Quartz Sand for Water Filtration
> Natural quartz sand granules used in residential and commercial water filters, washed but unprocessed. The sand is screened to specific grain sizes but not chemically or thermally altered, qualifying as a natural sand of heading 25.05. It is suitable for pool and aquarium filtration due to its natural properties.
2505.90.00Volcanic Black Sand
> Natural basaltic black sand from volcanic beaches, used in zen gardens and decorative landscaping. The sand is washed and screened but not chemically processed, qualifying as a natural sand of heading 25.05. Although iron-rich, the metal content is not economically extractable, so it is not classified as a metal ore.