3402.90.10.00/Linear Alkylbenzene Sulfonate (LAS)/Mexico

Linear Alkylbenzene Sulfonate (LAS) from Mexico

LAS is a primary anionic synthetic surfactant used in laundry and dishwashing detergents for its excellent foaming and cleaning properties. It meets the Chapter 34 definition for organic surface-active agents by reducing surface tension in water solutions and forming stable emulsions. Classified under 3402.90.10 as a synthetic detergent, distinct from soap.

Duty Rate — Mexico → United States

13.8%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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Import Tips

• Verify surfactant concentration meets 0.5% water test for surface tension reduction per Chapter notes to avoid reclassification

• Provide Safety Data Sheets (SDS) and purity certificates; common pitfall is mislabeling as soap leading to 3401 duties

• Ensure CAS number documentation (e.g

• 27176-87-0) for customs verification of synthetic composition