Sulfur-Potassium Sulfate Blend Fertilizer from China
Potassium sulfate enhanced with elemental sulfur for acidifying soils in high-pH areas. Meets HTS 3104.30.00.00 as primary potassium sulfate component qualifies as potassic fertilizer. Used for crops like blueberries requiring both K and S nutrition.
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
• Specify blend ratios; >50% potassium sulfate maintains 3104.30 classification
• Soil pH test data supports agricultural use declaration
• Sulfur content may trigger fumigation requirements during shipping