High-Grade Double Superphosphate 42% from China
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 — China → United States
25%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 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