Ammonium Tetramolybdate from China
Ammonium tetramolybdate (NH4)2Mo4O13 is utilized in flame retardants and corrosion inhibitors. It qualifies for HTS 2841.70.10.00 as a peroxometallic/oxometallic salt of ammonium per HTS hierarchy.
Duty Rate — China → United States
16.8%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include molecular formula on labels for customs verification; test for heavy metal impurities
• Avoid pitfall: classifying as organo-inorganic per Chapter 28 exclusion