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Chloromethylphosphonic dichloride from China

Chloromethylphosphonic dichloride (ClCH2P(O)Cl2) has phosphorus attached to one chloromethyl group meeting the HTS 2931.59.00.60 carbon limitation criterion despite halogen substitution. Used in flame retardant polymer additives production.

Duty Rate — China → United States

16.2%

Rate breakdown

9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

Import Tips

Flame retardant precursors often trigger additional NFPA compliance documentation

Verify 'no further carbon atoms' strictly; chloromethyl counts as single C per statistical definition

Triple-check invoice descriptions; misclassification to Chapter 29 hydrocarbons common pitfall

Chloromethylphosphonic dichloride from China — Import Duty Rate | HTS 2931.59.00.60