WOT

WOT makes precision environmental-control systems, equipment that keeps temperature, humidity, and airborne particles at extremely tight tolerances inside the chambers of semiconductor and display manufacturing tools.

Its products, which include ultra-precise temperature-humidity controllers, fan filter units, and precision temperature regulators, are supplied to chipmakers and equipment manufacturers as components built into their production lines. Listed on KOSDAQ, Korea's tech-focused small-cap board, the company earns the largest share of its revenue from its temperature-humidity controller product line, which is integrated into photolithography and advanced memory packaging process equipment.