Alumina Ceramic Ball Valve for Wafer Polishing Slurry from Mexico
High-wear alumina ceramic ball valve, hand-operated, for precise slurry flow control in wafer polishers achieving critical surface flatness for fabrication. Under HTS 8481.90.5000 as ceramic 'other materials' part for semiconductor wafer prep.
Duty Rate — Mexico → United States
13%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Test and certify ceramic purity (>99.5% Al2O3) for polish slurry compatibility
• Include wafer flatness tolerance specs tying to statistical note (c)
• Avoid declaring as 'lab valve' to prevent Chapter 90 shift