Crystal Ingot Diameter Grinder from China
Precision grinders that shape crystal ingots to uniform diameter tolerances before wafer slicing, with automated profiling for resistivity flat marking. HTS 8443.99.5050 as other semiconductor wafer prep accessories per statistical notes. Maintains crystal orientation throughout process.
Duty Rate — China → United States
20%
Rate breakdown
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Document flat positioning accuracy <0.5° for classification support
• Ship with calibration standards; CBP may test metrology capability
• Common misclassification as 8458 grinders; specify semiconductor end-use