Industrial Grade Dimethyl Phosphite from Mexico
Industrial dimethyl phosphite, typically 97-98% pure, is employed in manufacturing water treatment agents and as a reducing agent, classified in HTS 2920.21.00.00 as a pure phosphite ester. Its structure qualifies under chapter provisions for esters of inorganic nonmetal acids.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Label drums with UN 2845 hazmat markings; obtain end-user statements for chemical weapon convention compliance; test for stabilizer content to confirm single-compound status