Granular Ammonium Sulfate 21-0-0 Fertilizer from Canada
Granular ammonium sulfate fertilizer with 21% nitrogen and 24% sulfur content, used primarily for correcting sulfur deficiencies in crops like corn and wheat. It falls under HTS 3102.21.00.00 as pure ammonium sulfate not put up in retail packages of heading 3105. The prilled form allows for even spreading and slow-release nitrogen supply to plants.
Duty Rate — Canada → United States
0%
Rate breakdown
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
• Verify purity meets chapter note requirements for ammonium sulfate without organic additives exceeding trace levels
• Provide lab analysis certificates confirming N-P-K content (21-0-0) and sulfur percentage for customs valuation
• Ensure bulk packaging avoids retail forms under 3105 to prevent reclassification; declare net weight accurately