Cyclic Trimethylenetricarboxylic Triamide Tin Complex from Canada
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 — Canada → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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