Hübnerite Tungsten Ore
Hübnerite is a manganese-rich wolframite variety (MnWO4) extracted from pegmatites, serving as tungsten ore. Falls under HTS 2611.00.30.00 for unbeneficiated ores; statistical reporting focuses on tungsten assay.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If manganese content predominant
High-manganese hübnerite where Mn exceeds tungsten value may classify under manganese ores in Chapter 26.
If table concentrate form
Processed into 65%+ WO3 tables via gravity methods shifts to concentrates subheading.
If arsenic-containing residues
Per Chapter 2620, arsenic-bearing tungsten ore residues for extraction classify as industrial residues.
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Import Tips & Compliance
• Declare manganese-tungsten ratio in documentation to prevent misclassification as manganese ores (2602)
• Use sealed containers to preserve sample integrity for customs assay
• Comply with Dodd-Frank tungsten sourcing disclosures
Related Products under HTS 2611.00.30.00
Wolframite Ore
Wolframite is a primary tungsten-bearing ore mineral, typically containing 60-75% WO3, mined from hydrothermal veins. It falls under HTS 2611.00.30.00 as a tungsten ore used directly for concentrate production without significant processing. The assay quantity of metal content is reported without deductions per statistical notes.
Scheelite Ore
Scheelite ore consists of calcium tungstate (CaWO4) crystals from skarn or vein deposits, averaging 1-5% WO3 in raw form. Classified under HTS 2611.00.30.00 as unprocessed tungsten ore for milling into concentrates. Statistical notes require reporting pure metal content via assay.
Ferberite Tungsten Ore
Ferberite, an iron-rich endmember of the wolframite series, is a tungsten ore from granite-related deposits with high FeWO4 content. HTS 2611.00.30.00 covers this raw ore form before beneficiation. Metal content reported per assay without deductions.
Low-Grade Tungsten Skarn Ore
Skarn deposit ore containing scheelite disseminated in limestone, typically 0.5-2% WO3, mined via open pit. HTS 2611.00.30.00 applies to this raw tungsten ore before crushing/milling. Assay-based metal content reporting required.
Vein Wolframite Ore
High-grade wolframite from quartz veins in granite, 5-10% WO3, underground mined. Classified as tungsten ores under HTS 2611.00.30.00 in raw, uncrushed state. Statistical notes dictate undeducted metal reporting.
Alluvial Tungsten Ore
Placer deposit gravel containing wolframite grains, 0.1-1% WO3, dredged from rivers. HTS 2611.00.30.00 for raw alluvial tungsten ores pre-gravity separation. Report WO3 via fire assay.