Mr. Stephen E. Pirnat, also known as Steve, has been the Chairman of the Board and Chief Executive Officer of ClearSign Combustion Corp. since February 2015 and served as its President since February 3, 2015. Mr. Pirnat serves as the Managing Director of Europe, the Middle East and Africa for the Quest Integrity Group of Team Inc. He has been the President of Quest Integrated Inc. since September 2009. He serves as the President and Chief Executive Officer of the newly formed Quest Metrology Group LLC. From February 2000 to September 2009, he served as the President and Chief Executive Officer of the John Zink Company, LLC. He served as the President and Chief Executive Officer of Pangborn Corporation from 1998 to 1999, a leading supplier of surface preparation equipment and associated services to the automotive and aircraft industries. Mr. Pirnat's technological expertise and business experience in the combustion and air pollution control industry. He began his career as an applications engineer with the Pump and Condenser Group of Ingersoll-Rand, where he advanced through a variety of sales, marketing, engineering and operational positions with that company and its successor, Ingersoll-Dresser. These positions included Vice President of Ingersoll-Rand's Standard Products Division, Vice President of Marketing for Ingersoll-Dresser Pumps, President of Ingersoll-Dresser Pumps Canada Ltd., and Vice President and General Manager of Ingersoll-Rand Engineered Equipment Division. From 1988 to 1998, he served in various sales, marketing, operational, engineering and executive positions at Ingersoll-Rand and Ingersoll-Dresser Corporation. He has been an Independent Director of AZZ incorporated since July 8, 2014. He has been a Director of Clearsign Combustion Corp since November, 2011. He served as a Director of Profire Energy, Inc. from January 16, 2014 to September 15, 2016. He was a Board member of Quest Integrity Group. Mr. Pirnat holds a BSc. in Mechanical Engineering from the New Jersey Institute of Technology.