Langbeinite Potassium Sulfate Mineral Fertilizer from Japan
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 — Japan → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 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