Czochralski Crystal Puller Vacuum Pump from Mexico
This vacuum pump is a critical part of Czochralski crystal growers used to produce monocrystalline silicon boules for semiconductor wafers. It maintains the ultra-high vacuum environment necessary during the crystal pulling process to ensure purity and quality. Classified under HTS 8414.90.91 as a part of vacuum pumps specialized for semiconductor manufacturing equipment.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide detailed technical specifications and end-use statements proving semiconductor manufacturing application to qualify for duty-free treatment under Note 3
• Ensure HS classification documentation references statistical note (a)(i) for crystal growers to avoid misclassification as general vacuum pumps