Crystal Boule Grinder from Mexico
Crystal boule grinders precisely grind semiconductor crystal ingots to exact diameters and create orientation flats indicating conductivity. Falls under HTS 8474.80.0080 as grinding machinery for solid mineral substances (silicon boules). Prepares crystals for wafer slicing in semiconductor fabrication.
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
• Document grinding tolerances (e.g
• ±0.1mm) to prove precision mineral processing
• Pair with wafer manufacturing end-use statement
• Avoid classifying as general metalworking; specify semiconductor crystal material