Epitaxial Gas Premix Kneader from China
Kneading machine for multi-component precursor gas mixtures used in epitaxial layer growth on semiconductor wafers, ensuring stoichiometric uniformity. Classified HTS 8479.82.0040 for semiconductor processing stirring/kneading per statistical notes. Critical for compound semiconductor heterostructures.
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
• Certify gas-tight construction for hydride precursors (AsH3, PH3)
• Document mixing ratios for InGaAsP lattice matching applications