Crown Glass Single Vision Lenses from China
Traditional low-dispersion optical crown glass lenses (index 1.52) for everyday single vision correction, available in spherical powers from plano to ±20 diopters. Precision ground and polished for minimal chromatic aberration. Standard classification under HTS 9001.40.00.00 for unmounted glass spectacle lenses.
Duty Rate — China → United States
19.5%
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
9903.88.157.5%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)
Import Tips
• Specify glass type (Soda-Lime 1.523, Borosilicate 1.517) and verify with refractive index certificates
• Include power verification charts showing ±0.06D sphere, ±0.05D cylinder accuracy
• For high-volume imports, provide melt batch composition analysis ensuring consistent optical properties