Czochralski Crystal Puller from China
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 — China → United States
37.5%
Rate breakdown
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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