UAN-28 Ammoniacal Nitrogen Solution from China
UAN-28 is a 28% nitrogen liquid fertilizer blending 45% ammonium nitrate, 32% urea, and water with ammoniacal properties for enhanced crop uptake. Classified under HTS 3102.80.00.00 as it matches the exact description of urea and ammonium nitrate mixtures in aqueous or ammoniacal solution. Commonly used for corn and wheat fertilization.
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)
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Provide detailed blending ratios in commercial invoice to prove mixture status; imbalances may lead to classification as 3102.30 ammonium nitrate
• Label as 'non-pressurized UAN solution' to distinguish from explosive-grade materials requiring hazmat declarations
• Pre-register as agricultural input with USDA/AP HIS if importing to US; test for biuret content to ensure quality compliance