Woonyoung has producing various TRANSFORMER by voltage & capacity as a TRANSFORMER speciality manufacturer, has grown into electronics top comapny with developing optimum automation products for power supply & noise arrangement since established on 1978. We acquire quality certification, ISO9001, KS, cUL, CE, CSA, TUV, Q mark etc... in quality and do business with domestic major plant & overseas export developing Power protection devices from technical skills of control filed.Currently, we do business with SAMSUNG, LG, Hyundai Heavy Industries, LSmtron etc... and Tokyo Electron Ltd.' korea branch through head office & 46EA of domestic agent.Also, we take a step forward into global market through business with various countries, like China, Taiwan, Spain etc.Woonyoung promise to do our best for customer satisfaction & best quality.