Mr. Gentilcore is a technology executive with vast experience leading global companies as both an executive and a director. Until his retirement in December 2018, he served as the Executive Chairman of the board of directors of PQ Corporation, a performance chemicals and services company, having served as a member of its board of directors since 2016. Previously, he served as President and Chief Executive Officer of PQ Corporation from July 2016 until August 2018. Mr. Gentilcore served as an Executive Advisor to CCMP Capital, a global private equity firm, from April 2014 to June 2016. Prior to this, Mr. Gentilcore s wide range of senior leadership experience included serving as the Chief Executive Officer and a director of Edwards Group Limited, a global industrial technology company, as the President, Chief Executive Officer and a director of EPAC Technologies Inc., a logistics technology solutions company, as the Chief Operating Officer of Brooks Automation Inc. ( Brooks ), a provider of semiconductor manufacturing automation solutions, and as the Chief Executive Officer of Helix Technology Corp. ( Helix ), a provider of vacuum technology used in the manufacture of semiconductors, leading the merger between Brooks and Helix. Prior to that, he was the Chief Operating Officer of Advanced Energy Industries, Inc., an electronics manufacturing company. Earlier in his career, he spent 10 years in the electronics materials industry with Air Products Inc., a provider of industrial gases and chemicals, serving in various business development and operational roles. Mr. Gentilcore s over 40 years of experience in the technology industry, including his experience as Chief Executive Officer of two major companies serving the semiconductor industry, provide him with a deep understanding of the semiconductor business. As Chief Executive Officer of both PQ Corporation and Edwards Group Limited, Mr. Gentilcore had ultimate risk management responsibility, including for enterprise-wide strategic, operational, compliance and financial risks. In addition, through his experiences as a chief executive officer and director on other public company boards, Mr. Gentilcore has developed extensive knowledge in the areas of leadership, global business, corporate finance, safety and corporate governance. Further, Mr. Gentilcore contributes an important perspective to the Board on business development initiatives through his experiences leading companies through mergers and integrating acquired companies.