2931.90.90/Trimethylindium/Japan

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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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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