If the strip has been further worked after cold-rolling — for example, by annealing, temper-rolling, skin-passing, or other thermal or mechanical treatment that goes beyond simple cold reduction — it may no longer qualify as 'not further worked than cold-rolled' and would fall into this NESOI heading. The key is whether the processing step constitutes a further working in the tariff sense, which can require a binding ruling from CBP for novel processes.

Sweden, Austria, and Germany are home to specialty steel producers that focus on high-value, further-processed narrow strip for precision engineering, tool-making, and specialty industrial applications. These producers compete on metallurgical precision and surface quality rather than price, which explains their prominence in a residual heading that captures non-commodity, specialty-processed material.