Low-Cadmium Ammonium Sulfate Fertilizer from Canada
Purified ammonium sulfate meeting stringent heavy metal limits (Cd <1 ppm) for organic-adjacent farming systems. HTS 3102.29.00.00 applies despite purification as base remains ammonium sulfate. Suitable for leafy greens production.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Heavy metal analysis certificate mandatory; comply with country-specific contaminant limits; avoid 'organic' labeling without certification