U.S. exports of Tubes of Fused Quartz or Other Fused Silica, Unworked (HS 7002310000) totaled $15.9M in August 2026.

Importers of Tubes of Fused Quartz or Other Fused Silica, Unworked paid $1.2M in duties in August 2026, an average duty rate of 11.83% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Tubes of Fused Quartz or Other Fused Silica, Unworked imports of $10.1M in August 2026 ran 26% above the year-to-date monthly average of $8.0M.