Wafer Filtering Pump Housing from Mexico
A precision-machined housing for pumps in ultra-pure water filtering systems used in semiconductor wafer cleaning lines to purify process liquids. Classified under HTS 8421.99.01 as a part of filtering or purifying apparatus for liquids in high-tech manufacturing.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Require particle contamination test reports (e.g
• <0.1um particles) to prove suitability for semiconductor use
• Document integration with DI water systems to prevent reclassification as general pump parts