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SITCSection 6
U.S. imports of unworked glass balls, rods & tubes (excluding microspheres) (SITC 66412) totaled $17.9M in April 2026, traded with 30 countries.
Importers of Unworked Glass Balls, Rods & Tubes (Excluding Microspheres) paid $2.0M in duties in April 2026 — an effective duty rate of 12% on $17.5M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataUnworked glass rods and tubes are foundational inputs for laboratory glassware, pharmaceutical packaging, optical components, and specialty lighting, while glass balls in this heading exclude microspheres not exceeding 1 mm in diameter. The distinction between 'unworked' and further-fabricated forms is commercially significant: cutting, bending, or coating typically moves the product into a downstream classification. Diameter tolerances and glass composition (borosilicate vs. soda-lime) are the key specification variables that drive sourcing decisions.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Cutting alone generally does not constitute sufficient working to reclassify glass tubing, but additional operations such as fire-polishing ends, bending, or coating may advance the product to a more specific finished-goods heading. Importers should document the condition of the goods at time of importation and consult a licensed customs broker when the degree of processing is ambiguous.
This heading explicitly excludes microspheres not over 1 mm in diameter, which are classified separately and used in reflective road markings, fillers, and specialty coatings. The glass balls covered here are larger-diameter, unworked forms used in industrial grinding, bearings, and decorative applications.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | $2.0M | $10.4M | +$8.4M |
| GERMANY | $9.9M | $983K | -$9.0M |
| MEXICO | $51K | $4.7M | +$4.6M |
| FRANCE | $3.4M | $525K | -$2.9M |
| KOREA, SOUTH | $18K | $2.4M | +$2.3M |