8439.10.00.90/Rebuilt Czochralski Crystal Puller/China

Rebuilt Czochralski Crystal Puller from China

A rebuilt machine used to produce monocrystalline silicon boules from molten silicon via the Czochralski method, essential for semiconductor wafer manufacturing. Classified under HTS 8439.10.0090 as rebuilt machinery for processing semiconductor materials into forms suitable for pulp-like fibrous cellulosic handling in paperboard production contexts, per statistical notes on wafer manufacturing equipment. It falls here due to its used/rebuilt status and role in material growth for advanced substrates.

Duty Rate — China → United States

35%

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
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]
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Import Tips

• Verify rebuild certification and documentation proving prior use to qualify under 'used or rebuilt' subheading

• Include detailed maintenance logs and OEM specs to avoid reclassification as new machinery

• Ensure EPA compliance for any chemical residues from silicon processing during import inspection