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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If beneficiated or concentrated
Ore that undergoes gravity separation or flotation to increase WO3 content beyond raw ore state is classified as tungsten concentrates.
If roasted and primarily iron-based
Roasted tungsten ores resembling iron ores may shift to Chapter 26 headings for roasted ores if metallurgical processing alters primary characteristics.
If containing arsenic and used for extraction
Per Chapter 2620 notes, arsenic-bearing tungsten residues used for metal or arsenic extraction fall under slag/ash residues rather than raw ores.
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Import Tips & Compliance
• Report assay WO3 content precisely without deductions; obtain geological assay certificates from accredited labs
• Verify no roasting or chemical treatment to avoid reclassification as concentrates (2611.00.60)
• Ensure compliance with conflict mineral reporting for tungsten sources
Related Products under HTS 2611.00.30.00
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.
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.
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.