Halosulfuron Methyl Technical from Canada
Halosulfuron methyl (Methyl 5-{[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonylaminosulfonyl}-3-chloro-1-methyl-1H-pyrazole-4-carboxylate) is a sulfonylurea herbicide used for sedge and broadleaf weed control in rice, sugarcane, and turf. This specific sulfonamide is explicitly listed under HTS 2935.90.13.00. Imported as technical material for manufacturing commercial formulations like Permit or Sedgehammer.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Requires EPA import authorization; provide technical data package including mammalian toxicity and environmental fate studies
• Ensure proper storage conditions during transport to maintain chemical stability (avoid temperatures >40°C)
• Verify importer has Section 18 emergency exemption if needed for specific crop uses