U.S. exports of thermionic, cold cathode or photocathode tubes, nesoi (HS 8540890080) totaled $753K in August 2026.

Importers of Thermionic, Cold Cathode or Photocathode Tubes, NESOI paid $40K in duties in August 2026, an effective tariff rate of 10.94% of the $366K imported — duty actually collected as a share of that value, not the published tariff schedule. Thermionic, Cold Cathode or Photocathode Tubes, NESOI imports of $366K in August 2026 ran 44% below the year-to-date monthly average of $659K.