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Hexachlorobenzene (HCB) Technical Grade from China

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 — China → United States

137.5%

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
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

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