Copper Sulfate Pentahydrate Herbicide from Canada
A blue crystalline powder containing copper sulfate (CuSO4·5H2O), an inorganic compound used as a herbicide to control aquatic weeds and algae in ponds and irrigation canals. It is put up in retail packs for gardeners and farmers, falling under HTS 3808.93.20.00 because it is a herbicide preparation containing an inorganic substance. The product disrupts photosynthesis in target plants through copper ion release.
Duty Rate — Canada → United States
Rate breakdown
Import Tips
• Verify EPA registration and provide Safety Data Sheets (SDS) for inorganic active ingredients during customs clearance
• Ensure packaging meets retail sale requirements (under 5kg) to avoid reclassification as bulk chemical under 2828
• Label clearly with concentration of copper sulfate and hazard warnings to comply with FIFRA and TSCA regulations