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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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