Borosilicate Glass Balls for Laboratory Use from Japan
Unworked borosilicate glass spheres designed for melting into labware components like stirrers or valves. Classified in 7002.10.20.00 as other unworked glass balls, retaining chapter note character whether or not they have article-like form.
Duty Rate — Japan → United States
10%
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
Import Tips
• Include chemical analysis reports proving borosilicate composition to distinguish from soda-lime and support valuation
• Avoid common error of declaring as 'finished articles' if merely annealed; chapter notes keep them in 7002
• Label shipments clearly as 'unworked balls' to prevent CBP reclassifying as worked glass under 7017 lab glassware