Sodium Tripolyphosphate (STPP) from Germany
Sodium tripolyphosphate is a polyphosphate salt used as a builder in detergents and for water softening in food processing. It falls under HTS 2835.29.51.00 as a polyphosphate, chemically defined inorganic compound of phosphorus. This classification applies to its anhydrous or hydrated forms used industrially.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Verify purity and chemical composition via lab analysis to confirm classification as polyphosphate under Chapter 28
• Include Safety Data Sheets (SDS) and Certificate of Analysis in documentation to avoid reclassification to Chapter 31
• Ensure proper labeling for hazardous materials if shipped in bulk to comply with DOT and EPA regulations