Richard Nathan, PhD, has served on our Board of Directors since March 2016. From April 2016 until his retirement in February 2018, Dr. Nathan served as our Chief Operating Officer. Prior to that, Dr. Nathan was the Chief Executive Officer of AOC Key Solutions, where he worked for over 17 years. Dr. Nathan has over 45 years of corporate management, program management and business and proposal development experience and experience managing service and technical contracts for federal departments and agencies and state governments. Dr. Nathan holds a BS in Chemistry from the Massachusetts Institute of Technology and a PhD in Chemistry from the Polytechnic Institute of Brooklyn. We believe Dr. Nathan is qualified to serve on our board of directors due to his technical background, executive leadership experience and understanding of government contracting and the aviation and aerospace industries.