Quartz Ingot for Photomask Substrates from United States
A synthetic quartz crystal ingot (fused silica) grown hydrothermally, exceeding 2.5 grams, for EUV photomask blanks in chip fabrication. As a cultured crystal that is not an optical element, it falls under this tariff item.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the ingot is not yet a photomask blank (which would be Chapter 90)
• Keep records of the hydrothermal growth process
• Check if the product requires a permit under Canada's Export and Import Permits Act