Tristyrylphenol Ethoxylate Surfactant from Mexico
Tristyrylphenol ethoxylate (TSP) is a heavily modified aromatic non-ionic surfactant with three styrene units, ideal for agricultural emulsifiable concentrates. Classified in HTS 3402.42.10.00 as an aromatic organic surface-active agent forming stable emulsions. Bulk industrial supply only.
Duty Rate — Mexico → United States
14%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include HLB value (typically 10-17) in documentation for non-ionic proof
• Comply with FIFRA if destined for pesticide end-use
• Prevent dilution that could reclassify as preparation