Ethylenethiourea (ETU) Plant Growth Regulator from Canada
Ethylenethiourea functions as a thiourea-derived plant growth regulator controlling sucker growth in tobacco and promoting lateral branching. HTS 2930.90.30.00 includes it as a thiuram-related pesticide affecting plant physiology. Applied as foliar spray during cultivation.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Tobacco-specific tolerances require import residue analysis certificates
• Highly toxic; Level 1 PPE requirements must be documented in SDS
• Technical material needs HPLC purity verification (min 97%)