Containing by weight more than 97% of calcium fluoride
Feldspar; leucite; nepheline and nepheline syenite; fluorspar. > Fluorspar: > Containing by weight more than 97% of calcium fluoride > Containing by weight more than 97% of calcium fluoride
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2529.2
Acid Grade Fluorspar Lump
Acid grade fluorspar in lump form containing approximately 97% calcium fluoride (CaF2), extracted from natural mineral deposits. It is used primarily in the production of hydrofluoric acid for industrial chemical processes. This product falls under tariff item 2529.21.00 as it is fluorspar with a calcium fluoride content by weight of 97% or less, and it has not undergone any processing beyond crushing or grinding as permitted by Chapter 25 notes.
2529.21.00Ceramic Fluorspar Powder
Ground fluorspar powder with a calcium fluoride content of 96% by weight, processed by milling natural fluorspar. It is used in ceramic glazes and enamels to improve fluidity during firing. This product is classified under tariff item 2529.21.00 because it is natural fluorspar with CaF2 content at or below 97%, and grinding is a permitted mechanical process under Chapter 25 notes.
2529.21.00Fluorspar Briquettes Low Grade
Compressed low-grade fluorspar briquettes containing 94% calcium fluoride, formed by agglomeration for easier handling in aluminum smelting. The briquettes are not further worked after compression and maintain a CaF2 content below 97%. This product falls under tariff item 2529.21.00 as agglomerated fluorspar not exceeding the specified purity threshold.
2529.21.00Fluorspar Gravel 95% CaF2
Natural fluorspar gravel screened to a 3-10mm particle size with a calcium fluoride content of 95%, used as a flux in phosphate fertilizer production. The gravel is in a crude granular state, having only been screened, which is a permitted mechanical process under Chapter 25 notes. It is classified under tariff item 2529.21.00 due to its CaF2 content of 97% or less.
2529.21.00Metallurgical Grade Fluorspar Fines
Crushed fluorspar fines with a calcium fluoride content ranging from 95% to 97%, used as a fluxing agent in steelmaking to lower melting points. The fines are produced by crushing natural fluorspar and have not undergone any processing beyond mechanical size reduction. This product is classified under tariff item 2529.21.00 as low-grade fluorspar not exceeding 97% calcium fluoride by weight.
2529.21.00Raw Fluorspar Chips for HF Production
Chipped fluorspar with a calcium fluoride content of 92-96%, sized uniformly at 10-50mm for feeding into hydrofluoric acid reactors. The chips are in a crude state, having only been chipped and screened, which are permitted mechanical processes under Chapter 25 notes. This product falls under tariff item 2529.21.00 due to its sub-97% calcium fluoride concentration.
2529.22.00Acid Grade Fluorspar Lump
Acid Grade Fluorspar Lump consists of high-purity fluorspar lumps containing over 97% calcium fluoride, mined and crushed for industrial use in hydrofluoric acid production. This raw material falls under tariff item 2529.22.00 due to its exceptional calcium fluoride content and unprocessed state, which aligns with the chapter's coverage of crude or mechanically processed minerals.
2529.22.00Aluminum Reduction Fluorspar Briquettes
Aluminum Reduction Fluorspar Briquettes are briquetted fluorspar with over 97% CaF2, used as an electrolyte component in aluminum electrolysis cells. They remain under tariff item 2529.22.00 as agglomerated natural high-purity mineral, not chemically altered, consistent with the chapter's allowance for mechanical processes like agglomeration.
2529.22.00Ceramic Flux Fluorspar Granules
Ceramic Flux Fluorspar Granules are granulated fluorspar with over 97% calcium fluoride, serving as a flux in ceramic tile production. They are classified under tariff item 2529.22.00 because they are in a natural high-purity state before further processing, and granulation is a mechanical process permitted by Chapter 25 notes.
2529.22.00Chemical Grade Fluorspar 98%
Chemical Grade Fluorspar 98% is premium chemical-grade fluorspar assayed at 98%+ CaF2 for fluorine compound synthesis. It is specifically classified under tariff item 2529.22.00 for exceeding the 97% purity threshold, and it is in a crude or mechanically processed state, aligning with Chapter 25 coverage.
2529.22.00Glass Manufacturing Fluorspar
Glass Manufacturing Fluorspar is fine-ground fluorspar powder containing more than 97% calcium fluoride for glass opacity and fluxing. Tariff item 2529.22.00 covers this essential high-purity raw material for container glass production, as grinding is a mechanical process allowed under Chapter 25.
2529.22.00High-Purity Fluorspar Chips
High-Purity Fluorspar Chips are chipped fluorspar pieces exceeding 97% calcium fluoride by weight, ideal for aluminum smelting fluxes. This product is under tariff item 2529.22.00 as natural fluorspar meeting the high-purity criterion, and chipping is a mechanical process consistent with Chapter 25.
2529.22.00Hydrofluoric Acid Feedstock Fluorspar
Hydrofluoric Acid Feedstock Fluorspar is premium lump fluorspar exceeding 97% CaF2, specifically graded for hydrofluoric acid synthesis. Tariff item 2529.22.00 applies to this raw, high-concentration natural mineral, as it is in a crude state and not subjected to processes beyond mechanical treatment.
2529.22.00Metallurgical Grade Fluorspar Powder
Metallurgical Grade Fluorspar Powder is finely ground fluorspar powder with >97% CaF2 content, used as a flux in steelmaking to lower melting points. It is classified under tariff item 2529.22.00 for its high calcium fluoride purity in raw, unprocessed mineral form, with grinding being a permitted mechanical process.
2529.22.00Optical Grade Fluorspar Crystals
Optical Grade Fluorspar Crystals are natural fluorspar crystals selected for >97% CaF2 purity, used in lens manufacturing and spectroscopy. They fall under tariff item 2529.22.00 as unworked high-purity fluorspar mineral, provided they are not polished or worked beyond mechanical processes.
2529.22.00Steel Flux High-Purity Fluorspar
Steel Flux High-Purity Fluorspar is crushed fluorspar chunks >97% CaF2 used as a slag former in electric arc furnaces. This raw material is classified under tariff item 2529.22.00 based on its superior calcium fluoride content, and crushing is a mechanical process allowed by Chapter 25.