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3402.31.10.00/Calcium Dodecylbenzene Sulfonate/Canada

Calcium Dodecylbenzene Sulfonate from Canada

Calcium salt form used as corrosion inhibitor in lubricants and overbased detergents. Still classifies as anionic surfactant under 3402.31.10.00 despite end-use. Meets surface activity tests.

Duty Rate — Canada → United States

16.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Specify TBN (total base number) if overbased variety

• Separate from petroleum sulfonates via origin certificates