Containing by weight more than 97% of calcium fluoride
Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26. > Containing by weight more than 97% of calcium fluoride > Containing by weight more than 97% of calcium fluoride
Duty Rate (from China)
Products classified under Tariff item 2529.22.00.00
Acid Grade Fluorspar Lump
Acid grade fluorspar lumps mined and crushed to contain over 97% calcium fluoride, used primarily as feedstock for hydrofluoric acid production. The product is in a crude state, having only been crushed and screened, with no chemical alteration or heat treatment, aligning with Chapter 25's coverage of natural mineral products.
2529.22.00Aluminum Reduction Fluorspar Briquettes
Fluorspar briquettes formed by agglomeration of high-purity fluorspar (>97% CaF2) for use in aluminum electrolysis cells. The briquetting process is a mechanical or physical process that does not change the mineral's structure, and the product remains within Chapter 25's scope as a natural mineral product.
2529.22.00Ceramic Flux Fluorspar Granules
Granulated fluorspar with over 97% calcium fluoride content, used as a flux in ceramic tile production. The granules are produced by crushing and sieving natural fluorspar, a mechanical process permitted under Chapter 25, and the product is not roasted, calcined, or mixed.
2529.22.00Chemical Grade Fluorspar 98%
Premium chemical-grade fluorspar with a calcium fluoride content of 98% or higher, intended for fluorine compound synthesis. The product is in a crude or minimally processed state, having only been crushed and sorted, and meets the purity threshold of tariff item 2529.22.00.
2529.22.00Glass Manufacturing Fluorspar
Fine-ground fluorspar powder containing more than 97% calcium fluoride, used as a flux and opacifier in glass manufacturing. The powder is produced by grinding natural fluorspar, a mechanical process allowed under Chapter 25, and the product is not chemically modified.
2529.22.00High-Purity Fluorspar Chips
Chipped fluorspar pieces exceeding 97% calcium fluoride by weight, used as a flux in aluminum smelting. The product is in a crude state, having been chipped and screened from natural mineral deposits, with no further processing beyond mechanical size reduction.
2529.22.00Hydrofluoric Acid Feedstock Fluorspar
Lump fluorspar exceeding 97% CaF2, specifically graded for hydrofluoric acid synthesis. The product is mined and crushed, remaining in a crude state without any chemical or thermal treatment, and meets the high-purity criterion of tariff item 2529.22.00.
2529.22.00Metallurgical Grade Fluorspar Powder
Finely ground fluorspar powder with over 97% CaF2 content, used as a flux in steelmaking to lower melting points. The powder is obtained by grinding natural fluorspar, a mechanical process permitted under Chapter 25, and contains no added substances beyond an anti-dusting agent.
2529.22.00Optical Grade Fluorspar Crystals
Natural fluorspar crystals selected for over 97% CaF2 purity, used in lens manufacturing and spectroscopy. The crystals are in a crude state, not worked or polished, and are not optical elements, so they fall within Chapter 25's coverage of natural mineral products.
2529.22.00Steel Flux High-Purity Fluorspar
Crushed fluorspar chunks with over 97% CaF2 content, used as a slag former in electric arc furnaces. The product is in a crude state, having been crushed from natural mineral deposits, with no chemical or thermal processing, and meets the purity threshold of tariff item 2529.22.00.