Bis(tributyltin) Oxide from Mexico
Biochemical reagent and antifouling agent with characteristic Sn-C bonds in tributyl groups. HTS 2931.90.90.29 covers this organo-tin compound excluded from specific subheadings.
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
• Restricted under International Maritime Organization AFS Convention; verify port-state controls
• Declare exact tributyltin content per EPA method 8270 for environmental compliance
• Pure form stays in 2931; antifouling paint mixtures shift to 3208 or 3808