Polyphosphoric Acid Blend 60% P2O5 Fertilizer Grade from Mexico
A blend of phosphoric and polyphosphoric acids totaling 60% P2O5 equivalents, used in high-analysis liquid fertilizers. Covered by HTS 2809.20.00.10 for its sub-65% P2O5 content and fertilizer application. Enhances nutrient availability in crop production.
Duty Rate — Mexico → United States
10%
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 pure polyphosphoric acids (>84% P2O5) via assay reports; CBP may require independent testing
• Declare as 'polyphosphoric acids' if chain length >1; affects duty but stays in same base heading
• Monitor for seasonal fertilizer tariffs; bulk imports need warehouse bonds for deferred duties