</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Carbonyl Chloride (Phosgene) from Mexico

Carbonyl chloride, commonly called phosgene (COCl2), is a toxic gas used in polyurethane and isocyanate production. It qualifies as a halide oxide of carbon under HTS 2812.90.00.90 per Chapter 28 note 2(b). Strict handling due to extreme toxicity.

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

Requires DEA/EPA import license; declare as UN1076 poison gas with full risk assessment

Cylinder imports must have DOT/UN spec markings; no retail packaging allowed

Purity >99% needed for Chapter 28; admixtures go to 3824