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Triethylaluminum Cocatalyst from Mexico

Triethylaluminum is a pyrophoric organoaluminum compound used as Ziegler-Natta cocatalyst in polyolefin production. 2931.90.90.52 classification for Al-C organo-inorganic compounds.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

UN 3399 organometallic pyrophoric; only Type 4H1 bottles approved

Spontaneously ignites in air; require dry-box repackaging capability

Alkylaluminums monitored for export controls