Dr. Roby was elected a director of our company in June 2021. She most recently served as an Executive Vice President and Member of the Management Committee of Linde plc, a leader in industrial and specialty materials for the semiconductor and other industries, from September 2017, upon Linde’s merger with Praxair, Inc., until her retirement in July 2020. Her tenure at Linde capped a more than 25 year career at Praxair prior to the merger, culminating in her serving as a Senior Vice President and Member of the Office of the Chairman from 2014 to 2017. Prior to this, she was the President, Praxair Asia and Electronics, based in Shanghai, China, for four years. Dr. Roby is the Vice Chair of the Board of the Nuvance Health Network, and is a Trustee of Villanova University. She received her B.Sc. from Villanova University, and her Ph.D. from the University of Delaware, both in Chemical Engineering, and is a Member of the National Academy of Engineering.