Sumco Corporation announced the retirement of Harumitsu Endo as director and Kohei Nakanishi as director and audit and supervisory committee member at the upcoming annual general meeting going to be held on March 28, 2018. The company also proposed the appointment of Toshihiro Awa, managing executive officer as new director and Akio Fuwa as new director and audit and supervisory committee member to its annual general meeting.