2903.92.00.00/Hexachlorobenzene (HCB) Technical Grade/Mexico

Hexachlorobenzene (HCB) Technical Grade from Mexico

Hexachlorobenzene (ISO) is a chlorinated aromatic hydrocarbon used primarily as an intermediate in organic synthesis and historically as a fungicide. It falls under HTS 2903.92.00.00 as a specifically named halogenated derivative of aromatic hydrocarbons per Chapter 29 note (a). This pure chemical compound contains no impurities that would exclude it from this classification.

Duty Rate — Mexico → United States

110%

Rate breakdown

9903.04.6094.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter

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

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Import Tips

• Verify EPA registration and TSCA compliance as HCB is heavily restricted under pesticide laws; obtain prior import approval

• Include detailed chemical analysis certificates confirming ≥98% purity to avoid reclassification as a mixture

• Declare historical fungicide use in documentation but emphasize current industrial synthesis applications to meet end-use declarations