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Copper Sulfate Pentahydrate Herbicide from China

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 — China → United States

42.5%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

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