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