Methylcyclopentadienyl Manganese Tricarbonyl from Mexico
Methylcyclopentadienyl manganese tricarbonyl (MMT) is an organomanganese fuel additive replacing lead compounds. Classified 2931.90.90.52 as organo-inorganic with Mn-C bonds.
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
• EPA fuel additive waiver required; include registration number
• Class 6.1 toxic liquid UN 3283; secondary containment mandatory
• Purity >98% required for fuel blending approval