Tungsten ores and concentrates.
Tungsten ores and concentrates. > Tungsten ores and concentrates.
Duty Rate (from China)
Products classified under Tariff item 2611.00.00.00
Alluvial Tungsten Ore
Alluvial tungsten ore consists of gravel deposits containing wolframite grains, typically with 0.1-1% WO3 content, dredged from riverbeds. This raw ore is classified under tariff item 2611.00.00 as it is a tungsten ore in its natural state, not yet subjected to beneficiation processes.
2611.00.00APT-Feed Tungsten Concentrate
APT-feed tungsten concentrate is a purified concentrate specifically prepared as feedstock for ammonium paratungstate (APT) production, with low silica and phosphorus impurities. This beneficiated product is classified under tariff item 2611.00.00 as a tungsten concentrate.
2611.00.00Breccia Tungsten Ore
Breccia tungsten ore is a raw ore extracted from breccia pipes, containing fragmented wolframite within a granite matrix and variable WO3 content of 2-8%. This product is classified under tariff item 2611.00.00 as it is a tungsten ore in its natural, unprocessed state.
2611.00.00Ferberite Tungsten Ore
Ferberite tungsten ore is an iron-rich endmember of the wolframite series, sourced from granite-related deposits and containing high FeWO4 content. This raw ore is classified under tariff item 2611.00.00 as it is unbeneficiated and used for tungsten extraction.
2611.00.00Hübnerite Tungsten Ore
Hübnerite tungsten ore is a manganese-rich wolframite variety (MnWO4) extracted from pegmatite deposits and used as a source of tungsten. This unbeneficiated ore is classified under tariff item 2611.00.00 as it is in its natural state for metallurgical extraction.
2611.00.00High-Grade Ferberite Tungsten Concentrate
High-grade ferberite tungsten concentrate is a premium product enriched to over 70% WO3 via multi-stage flotation, derived from ferberite (FeWO4). This beneficiated concentrate is classified under tariff item 2611.00.00 as a tungsten concentrate for industrial applications.
2611.00.00Low-Grade Tungsten Skarn Ore
Low-grade tungsten skarn ore contains scheelite disseminated in limestone, typically with 0.5-2% WO3, mined via open-pit operations. This raw ore is classified under tariff item 2611.00.00 as it is a tungsten ore before any crushing or milling.
2611.00.00Porphyry Tungsten Ore
Porphyry tungsten ore is a low-grade disseminated scheelite found in porphyry copper deposits, with less than 0.3% WO3, shipped separately as a byproduct. This raw ore is classified under tariff item 2611.00.00 when it is not mixed with copper ores.
2611.00.00Recycled Tungsten Ore Concentrate
Recycled tungsten ore concentrate is recovered from mining tailings or recycled scheelite/wolframite, processed to 55-65% WO3. This concentrate qualifies under tariff item 2611.00.00 as a tungsten concentrate regardless of its secondary origin.
2611.00.00Scheelite Ore
Scheelite ore consists of calcium tungstate (CaWO4) crystals from skarn or vein deposits, averaging 1-5% WO3 in raw form. This unprocessed ore is classified under tariff item 2611.00.00 as it is intended for milling into tungsten concentrates.
2611.00.00Scheelite Tungsten Concentrate
Scheelite tungsten concentrate is a high-grade product derived from scheelite ore (CaWO4), containing approximately 65-70% WO3 after flotation processing. This concentrate is classified under tariff item 2611.00.00 as a tungsten concentrate, distinct from raw ores.
2611.00.00Stockpile Tungsten Ore
Stockpile tungsten ore is aged surface material blending scheelite and wolframite grades, with 1-3% WO3, recovered from mine waste reprocessing. This raw ore is classified under tariff item 2611.00.00 as it is in its natural state for tungsten extraction.
2611.00.00Vein Wolframite Ore
Vein wolframite ore is high-grade wolframite from quartz veins in granite, containing 5-10% WO3, extracted via underground mining. This raw, uncrushed ore is classified under tariff item 2611.00.00 as a tungsten ore for metallurgical use.
2611.00.00Wolframite Ore
Wolframite ore is a primary tungsten-bearing mineral, typically containing 60-75% WO3, mined from hydrothermal veins. This ore is classified under tariff item 2611.00.00 as it is used directly for concentrate production without significant processing.
2611.00.00Wolframite Tungsten Concentrate
Wolframite tungsten concentrate is a flotation concentrate from wolframite ore ((Fe,Mn)WO4), typically assaying 60-68% WO3 with iron and manganese impurities. This beneficiated product is classified under tariff item 2611.00.00 as a tungsten concentrate for downstream processing.