Diammonium Phosphate from Japan
Diammonium phosphate ((NH4)2HPO4) functions as a fire retardant, yeast nutrient in baking, and pH buffer. Under HTS 2835.29.51.00 as other phosphates, it's chemically defined per Chapter 28 for ammonium salts. White crystalline powder form.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Distinguish from 2835.22 DAP fertilizer by purity (>98%) and end-use declaration
• Fire retardant applications need NFPA compliance statements
• Ammonium compounds require proper ventilation labeling for hazmat