Tungsten(VI) Oxide Granules from Japan
Granular form of WO3 used in gas sensor manufacturing and electrochromic devices. Classified under HTS 2825.90.30.00 as it is a specific tungsten oxide meeting inorganic base oxide definitions. The granular physical form does not change its chemical classification.
Duty Rate — Japan → United States
5.5%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Provide particle size analysis to distinguish from bulk tungsten metal precursors and avoid reclassification
• Comply with REACH-like regulations for chemical imports; include extended SDS covering environmental hazards
• Declare exact CAS number (1314-35-8) on commercial invoice to facilitate verification