Cyclic Trimethylenetricarboxylic Triamide Tin Complex from Mexico
Specialty organo-tin complex for polymer catalysis with tin directly linked to carbon atoms. HTS 2931.90.90.29 applies as other organo-tin not specifically provided for.
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
• Include peer-reviewed structural analysis confirming Sn-C coordination bonds
• Declare as UN 2788 if >25% tin content; check PG III packaging requirements
• Complexes may face coordination compound note (C)(3); tin fragment determines 2931