2931.90.90.52/Methylcyclopentadienyl Manganese Tricarbonyl/Japan

Methylcyclopentadienyl Manganese Tricarbonyl from Japan

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 — 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

• 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