Sumitronics Corporation's business includes EMS (Electronic Manufacturing Services) and global SCM (Supply Chain Management).

EMS Business: With over 30 years of industry experience, we have successfully manufactured a wide range of printed circuit boards for various electrical appliances such as air conditioners, printers, elevators, ATMs, as well as medical components like ultrasound diagnostic equipment and electronic automobile equipment. Global SCM: We centrally manage our procurement activities, leveraging the reliability of Sumitomo Corporation to ensure efficient bulk purchasing.