Osmium Powder 99.9% Pure from China
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 — China → United States
25%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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
• 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