</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2835.39.50.00/Sodium Hexametaphosphate (SHMP)/Mexico

Sodium Hexametaphosphate (SHMP) from Mexico

Sodium hexametaphosphate, a cyclic polyphosphate, functions as a water softener, dispersant in ceramics, and sequestrant in food processing. It qualifies for HTS 2835.39.5000 as an 'other' polyphosphate meeting chemical definition criteria.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Calculate with your customs valueVerify classification with AI

Import Tips

• Submit detailed chemical structure diagrams to confirm metaphosphate classification

• Comply with TSCA inventory requirements for new chemical substances

• Avoid bulk packaging that could lead to classification as unprepared material