High-Grade Double Superphosphate 42% from Canada
DSP 42% P2O5 in dense granules resists crushing during pneumatic application, suitable for aviation-spread over large pastures. HTS 3103.19.00.00 'other superphosphates' for phosphorus-deficient grasslands and hayfields. Minimal free phosphoric acid reduces equipment corrosion.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Abrasion index testing (<1% loss) verifies granule quality for duty entry
• Sulfur content declaration (<1%) avoids nitrogenous mixture classification
• Tonnage contracts need origin phosphate rock certificates for traceability