Trimethylgallium Precursor from Germany
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 — Germany → United States
21.3%
Rate breakdown
9903.04.6211.3%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
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