Langbeinite Potassium Sulfate Mineral Fertilizer from China
Natural langbeinite (sulfate of potash magnesia) mined and processed as potassium sulfate source with added magnesium. Falls under HTS 3104.30.00.00 as potassium sulfate potassic fertilizer, distinguished from pure chemicals by agricultural application. Popular for organic farming due to natural mineral origin.
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
• Provide mining origin certificates for natural mineral status verification
• Test for heavy metals; organic certifiers require clean analysis
• Specify not heat-treated beyond impurity removal to avoid 3103 classification