Bismuth Telluride Powder from Mexico
Bismuth telluride is the leading thermoelectric material for Peltier coolers and power generators, imported as fine powder. HTS 2842.90.90.10 covers it as a chemically defined telluride salt of inorganic base bismuth. High purity grades optimize figure of merit ZT.
Duty Rate — Mexico → United States
13.3%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Test for impurities affecting performance; DOT shipping as ORM-D if not hazardous
• Pitfall: sets with metals may go to Section XV