Polyglycol Methylphosphonate Hydraulic Fluid Stabilizer from China
Chemical stabilizer for synthetic hydraulic fluids based on polyglycol esters of methylphosphonic acid, enhancing thermal stability. Classified precisely under HTS 3824.92.00.00 as these specific esters. Prevents degradation in high-pressure fluid systems.
Duty Rate — China → United States
40%
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
• Provide fluid compatibility test data and stabilizer concentration details in import docs
• Comply with OSHA hazard communication standards for phosphonate-containing fluids
• Avoid 3820 classification for pure hydraulic fluids by emphasizing additive function