Water Treatment Biocide Blend from Mexico
Mixture of glutaraldehyde and quaternary ammonium compounds for controlling microbes in cooling towers. HTS 3824.99.93 covers this unspecified chemical preparation for industrial water systems. Prevents biofouling without restricted pesticide substances.
Duty Rate — Mexico → United States
15%
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
• Confirm absence of 3808-listed substances to avoid pesticide headings
• Register under TSCA if new formulation; include efficacy data
• Label as non-agricultural to prevent misclassification