Diethyl Phosphite for Glyphosate Synthesis from Canada
High-purity diethyl phosphite specifically for manufacturing glyphosate herbicide via phosphonate reaction pathway. HTS 2920.22.00.00 classification as chemically defined phosphite ester used in agrochemical production.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide end-use letter specifying glyphosate synthesis to support Chapter 29 over pesticide headings
• Ensure <50ppm chloride content; pesticide residues trigger 3808 scrutiny
• Bulk imports require TSCA certification for US manufacturing use