Hexachlorocyclohexane (Technical Grade) from China
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 — China → United States
125%
Rate breakdown
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)
9903.04.6096.3%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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