Float Zone Crystal Grinder Coolant Purifier from Germany
This purifying apparatus purifies coolant fluids for crystal grinders that shape semiconductor boules to precise diameters in wafer manufacturing. It qualifies for HTS 8421.99.0180 as a parts for purifying machinery dedicated to semiconductor material processing equipment. Maintains coolant purity to avoid crystal contamination.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Submit affidavits confirming use in float zone or Czochralski boule grinding processes
• Ensure customs declaration references statistical note (a)(ii)(A) for crystal grinders
• Avoid reclassification by specifying nanoscale filtration for semiconductor coolants