Acetal Engineering Sheets from Mexico
Noncellular acetal (polyoxymethylene) sheets for machining into precision engineering components. Classified in 3920.99.5000 as other plastic sheets, non-reinforced, where acetal polymer meets the 'poly' prefix 95% purity requirement. Used in industrial fabrication, not as finished parts.
Duty Rate — Mexico → United States
15.8%
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
• Require FTIR spectroscopy reports confirming ≥95% acetal polymer content per subheading note (a)(1); clearly mark as 'stock material - not finished parts' to avoid parts classification
• Segregate from any fiber-reinforced grades during shipment