Greg is the Interim President, Chief Executive Officer and Treasurer of ADES since July 2020. Prior to his appointment as President and Interim Chief Executive Officer, Greg served as the Chief Financial Officer, Treasurer and Secretary from March 2018 through June 2020. He also has previously served as the Company’s Chief Accounting Officer and various other roles with the Company. Greg also serves as a Manager on the Board of Managers of Tinuum Group, LLC. and a Manager and Officer of other ADES subsidiaries. Greg has over 15 years of experience related to accounting, finance and leadership of various teams.

Prior to joining ADES, Greg was a Senior Manager in the assurance practice at Ernst & Young, LLP in both Dallas and Denver, where he served at a variety of public and private clients.

Greg earned his bachelor’s degree in Accounting and his master’s degree in Finance from Texas A&M University. Greg has a CPA license in Texas and Colorado and is a member of the AICPA and the Colorado Society of CPAs.

Since joining ADA-ES in 2012, Ted has served in various roles, most recently as General Counsel and as a member of the Tinuum Group, LLC Board of Managers.

Prior to joining ADA-ES, Ted was in private practice focusing on corporate and litigation matters. In law school, Ted was an extern for the chief judge of the U.S. District Court for the Southern District of California, assisting with the judge’s patent litigation docket, and worked for a patent firm in Southern California. Prior to law school, Ted was an R&D engineer for the Ford Motor Company and the Hyundai-Kia America Technical Center, focusing on noise and vibration mitigation.

Ted earned his JD with a concentration in intellectual property from the University of San Diego School of Law, where he was a comments editor for the San Diego Law Review and a member of the national appellate moot court team. He earned his Bachelor of Science in Mechanical Engineering degree from Case Western Reserve University.

Dennis Sewell joined ADA Carbon Solutions in 2009 and currently serves as the Vice President of Manufacturing. Dennis has more than 25 years of industrial manufacturing experience and has served in various leadership roles at the company.

Prior to joining ADA, Dennis held various positions at ExxonMobil, International Paper Company, and Honeywell Specialty Materials.

Dennis holds a Bachelor of Science in Electrical Engineering from Louisiana Tech.

Lorraine Lang joined ADA Carbon Solutions and currently serves as the Vice President of Human Resources. Lorraine has ~15 years’ Human Resources leadership experience in the Specialty Chemicals Industry.

Prior to joining ADA Carbon Solutions, Lorraine was the Human Resources Manager for Sun Chemical Shared Services. Lorraine has a Bachelor of Arts degree from Bowling Green State University and a Master’s degree in Business Administration from Thomas More College. Lorraine is certified by the Society of Human Resource Management (SHRM) as both a Senior Professional of Human Resources as well as a SHRM Senior Certified Professional.