Czochralski Crystal Puller from Mexico
A casting machine used in semiconductor manufacturing to grow monocrystalline silicon boules via the Czochralski method by pulling a seed crystal from molten silicon. It falls under HTS 8454.30.00 as a specialized casting machine employed in metallurgy for producing high-purity ingots from which semiconductor wafers are sliced.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify machine specifications confirm use in metallurgical casting processes, with documentation on silicon boule production
• Obtain certificates proving high-purity semiconductor-grade materials handling to avoid reclassification