Hexachlorocyclohexane (Technical Grade) from Mexico
Technical grade hexachlorocyclohexane (HCH) is a mixture of isomers of chlorinated cyclohexane used historically as pesticide intermediate (excluding Lindane isomer). Falls under HTS 2903.89.70.90 per Chapter 29 note (b) for mixtures of isomers of same organic compound, specifically halogenated cyclanic hydrocarbons. Excludes purified single isomers which may have specific subheadings.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%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
Import Tips
• Submit isomer composition analysis to distinguish from single-isomer products; ensure Stockholm Convention compliance documentation for persistent organic pollutants; use proper waste byproduct declarations