Previously, companies from advanced countries like America (DYNAPOWER) and Japan (Sanrex, Mitsubishi) used to solely provide large capacity rectifiers. However, at present, through continuous technological development, we have been acknowledged for our equal quality and manufacturing ability and are supplying for the top 3 copper foil producing companies (share over 98%) and solely supplying for Posco, TCCSteel and other major steel companies. In the future, we will continue this partnership by achieving a closely cooperating relationship with major companies and collaborate in advancing in quality and development in technology striving to keep our position as leader in the rectifier industry.