2931.90.90.52/Trimethylgallium Precursor/Japan

Trimethylgallium Precursor from Japan

Trimethylgallium (TMGa) is an organogallium precursor for GaAs/GaN semiconductor epitaxy via MOCVD. Classified 2931.90.90.52 as organo-inorganic with Ga-C bonds.

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%

Calculate with your customs value Verify classification with AI

Import Tips

• UN 3390 pyrophoric; specialized lecture bottle packaging required

• Wassenaar dual-use controls apply; end-user certificates mandatory

• Vapor pressure testing confirms MOCVD grade specifications