Limestone Powder Fines
Fine powder derived from crushed limestone (heading 2515), particle size under 2mm, used in cement production, animal feed supplements, or soil amendment. HTS 2517.49.00.00 covers such powders of heading 2515/2516 stones, post-crushing. Not to be confused with precipitated calcium carbonate chemicals.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemically precipitated, not naturally crushed
Calcium carbonate from chemical processes falls under inorganic chemicals in Chapter 28.
If coarser particles qualify as pebbles or gravel for aggregates
Larger limestone pieces for concrete/road use go to the pebbles subheading.
If predominantly calcined into lime
Heat-treated to quicklime or hydrated lime shifts to heading 2522 for limes.
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Import Tips & Compliance
• Include calcium carbonate content analysis (>90% typical for limestone) for verification
• Distinguish from chemical-grade powders; natural crush origin prevents shift to Chapter 28
• Moisture content docs prevent rejection as 'agglomerated' under other headings
Related Products under HTS 2517.49.00.00
Granite Chippings 3-6mm
Chippings of granite stone (heading 2516) crushed to 3-6 mm size, ideal for pathway surfacing, railway ballast fines, or asphalt mixes. Falls under HTS 2517.49.00.00 as 'chippings' of heading 2516 stones, whether heat-treated or not. Distinguished from powder by coarser grain size.
Quartzite Chippings
Chippings from crushed quartzite (heading 2516), 5-10mm, for decorative gravel, terrazzo flooring aggregates, or water filtration. HTS 2517.49.00.00 as chippings of 2516 stones. High silica content distinguishes from marble.
Travertine Powder
Fine powder from ground travertine limestone (heading 2515), used in paints, plastics fillers, or restoration mortars. Under HTS 2517.49.00.00 as powder of 2515 stones, particle size <75 microns typical.
Gneiss Granules
Granules of crushed gneiss metamorphic rock (heading 2516), 2-4mm, for concrete countertops or garden mulch. HTS 2517.49.00.00 for processed granules of such stones.
Sandstone Chippings
Chippings from crushed sandstone (heading 2516), used in hydraulic fracturing or roofing granules. HTS 2517.49.00.00 applies.
Syenite Powder
Powdered syenite (heading 2516) for ceramics and glassmaking. Fine grind under 2517.49.00.00.