Willemite Zinc Ore Concentrate
Concentrate derived from willemite (Zn2SiO4) ore, a silicate zinc mineral with approximately 45% zinc content post-flotation. Falls under HTS 2608.00.0030 for zinc ores, with zinc content reported statistically. Primarily imported for roasting and leaching in zinc production.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If processed into mineral substances for industrial fillers
Earths and mineral substances not elsewhere specified, excluding metal ores, go to 2530.
If post-smelting residues or slags
Heading 2620 covers industrial residues used for metal extraction or chemical compounds.
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Import Tips & Compliance
• Include detailed mineralogical assay confirming zinc as principal metal; label shipments with UN hazard class if applicable
• Avoid bulk packaging without ventilation to prevent moisture-induced reactions
• Comply with EPA import notifications for certain origins
Related Products under HTS 2608.00.00.30
Zinc Blende Ore Concentrate
A concentrated form of zinc blende (sphalerite) ore, primarily sphalerite mineral with 40-50% zinc content after beneficiation. Classified under HTS 2608.00.0030 as zinc ores and concentrates, reporting the assay zinc content statistically. Used mainly for zinc metal extraction in smelters.
Smithsonite Calamine Zinc Ore
Carbonate zinc ore concentrate from smithsonite (ZnCO3), known as calamine, with 35-50% zinc content after processing. HTS 2608.00.0030 applies to its zinc ore classification, assay quantity reported. Imported for hydrometallurgical zinc recovery.
Hemimorphite Zinc Silicate Concentrate
Flotation concentrate of hemimorphite (Zn4Si2O7(OH)2·H2O), a zinc silicate ore averaging 42% zinc. Classified in HTS 2608.00.0030 under zinc ores and concentrates, with zinc content statistically noted. Used in specialized leaching processes for zinc.
Zinc-Lead Sulfide Mixed Concentrate
Mixed flotation concentrate from polymetallic ores like Broken Hill type, with 30% zinc and minor lead, classified by principal zinc content under HTS 2608.00.0030. Zinc assay reported statistically for trade stats. Sent to complex smelters for separation.
Roasted Zinc Ore Sinter
Partially roasted sphalerite concentrate forming sinter with 50%+ zinc content, still considered ore under HTS 2608.00.0030 before full smelting. Zinc content assayed and reported. Intermediate product for electrolytic zinc plants.
Hydrothermal Zinc Ore Concentrate
Concentrate from hydrothermal vein deposits, mainly sphalerite with 45% zinc, under HTS 2608.00.0030 for zinc content reporting. High-grade ore from deposits like Red Dog mine. Ideal for conventional roast-leach-electrowin processing.