Calcium Dodecylbenzene Sulfonate from Mexico
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 — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify TBN (total base number) if overbased variety
• Separate from petroleum sulfonates via origin certificates