Tin-Bearing Cassiterite Ore Concentrate from Japan
Gravity-separated cassiterite concentrate averaging 60% tin content from hard-rock lode deposits. Falls under HTS 2617.90.00 as other ores excluding specific tungsten-tin mixtures.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Test for tungsten impurities; levels over 5% may require reclassification under 2617.90.10
• Maintain chain-of-custody documentation from mine to port for smelter verification
• Declare particle size distribution to confirm gravity concentrate vs. flotation types