SulfurCoated Ammonium Sulfate Fertilizer from Canada
Polymer-sulfur coated ammonium sulfate granules for controlled-release nitrogen in turf and golf course applications. Classified under HTS 3102.29.00.00 as it remains fundamentally ammonium sulfate. Coating extends nutrient availability up to 120 days.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Document coating composition to prove it's still primarily ammonium sulfate; avoid 'slow-release' retail labeling; comply with EPA fertilizer coating regulations