3402.39.90/Sodium Alpha Olefin Sulfonate (AOS)/Mexico

Sodium Alpha Olefin Sulfonate (AOS) from Mexico

AOS is a foam-boosting anionic surfactant derived from alpha olefins, used in shampoos and hand soaps. It passes the 3402 surface-active test by creating translucent solutions. Classified in 3402.39.90 as other anionic agents.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter

Calculate with your customs value Verify with the Tariff Assistant

Import Tips

• Include carbon chain distribution data (C14-C16 typical) in import documentation

• Ensure no soap content exceeds trace levels to avoid 3401 reclassification

• Test for emulsion stability per Chapter note requirements during customs verification