New

Ask Wove anything about tariffs.

Try Tariff Assistant

Petroleum Sulfonate Surfactant from Mexico

Anionic surfactant from petroleum sulfonic acids, used in emulsifiable oils. Qualifies under 3402 despite petroleum origin (distinct from Chapter 27 oils).

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

Import Tips

• Distinguish from 3403 petroleum-based by surface activity testing

• Oil content analysis prevents Chapter 27 misclassification

• Dark viscous form; provide flash point data for shipping