3S

3S makes specialized plastic transport boxes used to carry silicon wafers, the thin, fragile discs that serve as the base material for semiconductor chips, safely between wafer producers and chip manufacturers.

Its products sit at an early, critical point in the semiconductor supply chain, supplying wafer makers and chipmakers who require contamination-free handling. Listed on KOSDAQ, Korea's tech-focused small-cap board, 3S also supplies environmental testing equipment and recently added factory-automation logistics systems as a third business line.