Molybdenum Trioxide from Canada
Molybdenum trioxide (MoO3) is a white to violet powder used in alloy production and as a catalyst. Falls under HTS 2825.90.90.00 as other metal oxides. Chemically defined inorganic base metal oxide per Chapter 28.
Duty Rate — Canada → United States
3.7%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Sintered or alloyed forms go to Chapter 81; import as pure powder with assay certificate
• Check Section VI notes for alloy exclusions; provide melting point data confirming oxide purity