Didecyldimethylammonium Chloride (DDAC) from Canada
DDAC is a cationic surfactant widely used as a disinfectant and biocide in industrial cleaning formulations. It qualifies under heading 3402 by producing stable emulsions and lowering water surface tension per the technical test. Falls in 3402.41.90.00 as other cationic agents beyond those specified.
Duty Rate — Canada → United States
14%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include EPA registration if used as disinfectant to comply with pesticide import rules
• Document concentration and test results proving organic surface-active agent status
• Label clearly as cationic to prevent reclassification into anionic or nonionic categories