Low-Grade Tungsten Skarn Ore from Canada
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.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Bulk shipments require representative sampling protocols (e.g
• riffle splitters) for accurate assay
• Differentiate from tailings to avoid waste classifications
• Monitor for calcium carbonate content that might trigger mineral filler headings