Dimethyl Methylphosphonate (DMMP) from China
Dimethyl methylphosphonate (DMMP) is a non-halogenated organo-phosphorus compound with the chemical formula CH3PO(OCH3)2, classified under HTS 2931.41.00.00 as a specific organo-inorganic derivative. It is a colorless liquid used primarily as a flame retardant additive and chemical intermediate.
Duty Rate — China → United States
38.7%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Verify purity levels (>98%) via certificate of analysis to confirm classification; ensure proper chemical labeling per DOT and EPA regulations; avoid misclassification as pesticide intermediates which require FIFRA registration