Trimethylindium from Japan
Trimethylindium (InMe3) is an organoindium precursor for III-V semiconductors with In-C bonds defining 2931.90.90 classification. Pyrophoric liquid excluded from inorganic indium (Ch28) by chapter organo-inorganic notes.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• UN3058 Pyrophoric solid packaging; nitrogen-padded containers mandatory
• ITAR/EAR export control verification for semiconductor end-use
• Extremely air-sensitive; import permits may specify direct cleanroom delivery