Wafer Filtering Pump Housing from Japan
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 — 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
• 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