Industrial Grade Dimethyl Phosphite from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 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