The ExOne Company announced that it has appointed Hans J. Sack to serve as President of the company effective March 16, 2015. In connection with this appointment, Mr. Sack resigned from the ExOne Board of Directors and as Chair of the Strategic Oversight Committee effective on March 10, 2015. Concurrently, the Board reduced its size to seven members and appointed current director Raymond J. Kilmer to serve as Chair of the Strategic Oversight Committee.

Mr. Sack served as a member of the company's board of directors and as Chair of the Strategic Oversight Committee from December 17, 2014 to March 10, 2015.