Float Zone Crystal Grower Winch Assembly from Mexico
A winch assembly designed for float zone crystal growers that produce high-purity silicon rods for semiconductor wafers. Classified under HTS 8431.10.0010 as parts of 8425.11 capstan/winch machinery used in semiconductor boule processing. Aligns with statistical note (a)(i) for crystal growers employing float zone methods.
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 float zone process diagrams showing winch integration to confirm principal use with 8425.11 machinery
• Label components clearly as 'semiconductor crystal grower exclusive' to prevent misclassification as general industrial parts