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
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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