Synthetic Sapphire Boule from Canada
A large single-crystal synthetic sapphire boule weighing over 2.5 grams, used in electronics and optics manufacturing. Classified under HTS 3824.99.1900 as cultured crystals (excluding optical elements of Chapter 90) that are not elsewhere specified. These are grown via methods like Czochralski process for substrate applications.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Verify crystal weight exceeds 2.5g per unit and obtain lab certification confirming synthetic cultured origin to avoid misclassification as natural gems
• Include detailed growth method documentation (e.g
• Kyropoulos process) and end-use statements to distinguish from optical elements in Chapter 90