Osmium Powder 99.9% Pure from Japan
Finely divided osmium metal powder where 90% or more passes through a 0.5 mm sieve, used in alloying and catalysis. Falls under HTS 7110.41.00.20 as osmium in powder form, explicitly defined in subheading notes for platinum group metals.
Duty Rate — Japan → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Provide sieve analysis certification proving 90%+ passes 0.5 mm mesh to qualify as 'powder form'
• Ensure no alloying with PGMs exceeding osmium weight to avoid reclassification
• Store and ship in inert atmosphere packaging to prevent oxidation during transit