Glufosinate Acid Technical Powder from Canada
Pure glufosinate acid (2-amino-4-[hydroxy(methyl)phosphonoyl]butanoic acid) in technical powder form serves as the base active ingredient for herbicide production. Classified under HTS 2931.49.0010 due to its specific organo-phosphorus structure as a non-halogenated derivative. Imported primarily by agrochemical manufacturers for salt formation and formulation.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include certificate of analysis verifying chemical structure and >98% purity to confirm HTS classification
• Declare as toxic substance (Class 6.1) with phosphonate safety data; avoid bulk packaging without stabilizers
• Monitor for moisture content as it affects stability; improper storage leads to degradation and quality issues