On July 9, 2019, the Board of Directors of SINTX Technologies, Inc. appointed Mr. David O’Brien to serve as Chief Operating Officer of the Company. Mr. O’Brien, age 54, previously served as the Company’s Vice President and General Manager from October 2016 to July 2019 and from March 2014 through September 2016, he held prior roles as its Vice President of Operations and Vice President of Manufacturing. Mr. O’Brien has over 30 years of experience in engineering, manufacturing, and operations leadership in advanced materials and medical device organizations.