Pyrite Ash from Roasting

Pyrite ash is the residue obtained from roasting iron pyrites to produce sulfuric acid, containing residual iron oxides and sulfur. Classified under HTS 2601.20.00.00 specifically for roasted iron pyrites before further chemical processing. It serves as a raw material in iron production and fertilizer manufacturing.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2601.12.00Same rate: 35%

If fines from unroasted pyrites

Non-agglomerated iron ore fines including unroasted pyrite particles classify under 2601.12.

2620Lower: 10% vs 35%

If containing arsenic and used for extraction

Per chapter note, arsenic-bearing roasted residues for metal/arsenic recovery go to 2620.20.

7204.10.00.00Same rate: 35%

If further sintered into ferroalloy feedstock

Agglomerated roasted pyrites processed for steelmaking may shift to Chapter 72 as ferrous products.

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Import Tips & Compliance

Include roasting process documentation and chemical composition analysis; watch for contamination that could trigger hazardous material declarations

Pitfall: classifying as waste ash under 2621 risks denial—prove industrial use

Related Products under HTS 2601.20.00.00

Roasted Iron Pyrite Concentrate

Roasted iron pyrites, also known as pyrite ash, are thermally processed iron sulfide ores used primarily as a source of sulfur and iron in industrial applications. This product falls under HTS 2601.20.00.00 as roasted iron pyrites, distinct from unroasted ores in 2601.11 or 2601.12. It is commonly roasted to remove volatile sulfur content for easier handling and extraction.

Calcined Iron Pyrite Lumps

Calcined or roasted iron pyrite lumps are heat-treated chunks of FeS2 ore, reducing sulfur volatility for safe transport and use in metallurgy. This HTS 2601.20.00.00 covers roasted forms explicitly, separating from raw pyrites. Primarily imported for sulfuric acid plants and iron smelters.

Roasted Pyritic Ore Fines

Fines from roasted pyritic iron ore, processed to stabilize for industrial sulfur recovery and iron concentrate production. Falls under HTS 2601.20.00.00 as roasted iron pyrites, not distinguished by size like unroasted ores. Used in cement and chemical industries.

Sulfur-Bearing Roasted Pyrite

Roasted pyrite retaining significant sulfur content for direct use in acid production, thermally treated to remove impurities. HTS 2601.20.00.00 applies to this pre-extraction roasted form of iron pyrites. Common in fertilizer and steel sectors.

Industrial Roasted Pyrite Pellets

Pelletized roasted iron pyrites for uniform feeding into roasters and smelters, heat-treated for density. Classified in HTS 2601.20.00.00 despite pellet form, as roasting defines it over agglomeration. Used in non-ferrous metal recovery.