PBTC 50% Aqueous Solution from Mexico
50% PBTC in water represents standard commercial concentration for water treatment injection systems. Remains classified under HTS 2931.90.70.00 per Chapter 29 note 1(d) allowing aqueous solutions of named compounds.
Duty Rate — Mexico → United States
10%
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
• Concentration <50% water may shift to Chapter 38 formulated products; verify exact assay
• DOT 8 corrosive label required; IBC tote specifications must match UN recommendations
• Biocontamination testing often required for water treatment chemical imports