Potassium Phosphate Monobasic from China
Potassium dihydrogen phosphate (KH2PO4) is used in fertilizers, pharmaceuticals, and as a buffering agent in lab reagents. Classified in HTS 2835.29.51.00 as other phosphates, it's a chemically defined inorganic potassium salt. High purity grades exceed 99%.
Duty Rate — China → United States
41.6%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
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)
Import Tips
• Differentiate from fertilizer grades by providing end-use certificates for non-agricultural imports
• Include REACH-like compliance docs if from EU to align with TSCA requirements
• Monitor for deliquescence; use sealed packaging to prevent quality claims