Silicon Ingot Molds for Semiconductor Production from Japan
Quartz or graphite molds for growing silicon ingots via Czochralski process in semiconductor wafer manufacturing, aligning with statistical notes for crystal growth. Used in metallurgy-like polysilicon casting. Fits HTS 8454.20.00 as ingot molds.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Link to semiconductor statistical notes with process affidavits
• High purity certs required; contamination risks trigger scrutiny
• ITAR/EAR checks if dual-use for advanced materials