Tetrachloroisophthalonitrile (TPN) from Mexico
TPN, the chemical name for chlorothalonil, is a broad-spectrum aromatic pesticide with multiple chlorine atoms bound to aromatic carbon, fitting HTS 2931.90.2600 criteria. Used in technical form for manufacturing fungicide formulations targeting foliar diseases.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify 98%+ purity with HPLC analysis to qualify as technical material, not formulation
• Comply with TSCA inventory listing and PMN if new chemical variant
• Package in UN-approved pesticide drums to meet DOT hazardous material transport rules