2931.90.90/Triisobutylaluminum/Mexico

Triisobutylaluminum from Mexico

Triisobutylaluminum ((iBu)3Al) is a pyrophoric organoaluminum cocatalyst for Ziegler-Natta polymerization with Al-C bonds qualifying for 2931.90.90. Excluded from inorganic aluminum (Ch28) by chapter organo-inorganic definitions.

Duty Rate — Mexico → United States

3.7%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Calculate with your customs valueVerify classification with AI

Import Tips

• UN3052 Pyrophoric aluminum alkyls; requires custom pressure-rated containers

• Polymerization catalyst—end-user verification prevents diversion to explosives

• Thermal decomposition hazard; shipping papers must specify max temperature

Triisobutylaluminum from Mexico — Import Duty Rate | HTS 2931.90.90