Czochralski Crystal Puller Heating Element from Mexico
A high-temperature graphite or molybdenum heating element designed specifically for use in Czochralski crystal growers under HTS 8486.10, which are classified in heading 8429. It mounts inside the puller chamber to melt semiconductor materials like silicon for boule growth. This part falls under 8431.49.9020 as an attachment for mounting on semiconductor wafer manufacturing machinery.
Duty Rate — Mexico → United States
10%
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 the part is solely for heading 8429 machinery via manufacturer specs to avoid reclassification
• Include detailed engineering drawings and end-use statements in documentation for CBP review