Mark Duff

Mark Duff

President and Chief Executive Officer

Mr. Mark Duff was appointed to the position President and Chief Executive Officer (CEO) by the Company’s Board of Directors on September 8, 2017.  Prior to holding the position of CEO, Mr. Duff held the position of Executive Vice President/Chief Operating Officer. Mr. Duff has 30 years of management and technical experience in the U.S Department of Energy (“DOE”) and U.S. Department of Defense (“DOD”) environmental and construction markets as a corporate officer, senior project manager, co-founder of a consulting firm, and federal employee. For the immediate five years prior to joining the Company in June 2016, Mr. Duff was responsible for the successful completion of over 70 performance-based projects at the Paducah Gaseous Diffusion Plant (PGDP) in Paducah, KY. At the PGDP, he served as the Project Manager for the Paducah Remediation Contract, which was a five-year project with a total value of $458 million. Prior to the PGDP project, Mr. Duff was a senior manager supporting Babcock and Wilcox (B&W), leading several programs that included building teams to solve complex technical problems. These programs included implementation of the American Recovery and Reinvestment Act (ARRA) at the DOE Y-12 facility with a $245 million budget for new cleanup projects completed over a two year period.  During this period, Mr. Duff served as project manager leading a team of senior experts in support of Toshiba Corporation in Tokyo, Japan to integrate United States technology in the recovery of the Fukushima Daiichi Nuclear Reactor disaster. Prior to joining B&W, Mr. Duff served as the president of Safety and Ecology Corporation (SEC). As President of SEC, he helped grow the company from $50 million to $80 million in annual revenues with significant growth in infrastructure, marketing, and client diversification. Mr. Duff has an MBA from the University of Phoenix and received his B.S. from the University of Alabama.

Louis F. Centofanti

Louis F. Centofanti

Executive Vice President of Strategic Initiatives

Dr. Centofanti has been a Board member since the Company’s inception in February 1991. Dr. Centofanti served as Chairman of the Board from the Company’s inception until December 16, 2014.  Dr. Centofanti currently serves as the Company’s Executive Vice President of Strategic Initiatives. Dr. Centofanti served as the Company’s President and Chief Executive Officer from February 1991 to September 1995 and again in March 1996 to until September 8, 2017. Dr. Centofanti was appointed by the U.S Secretary of Commerce Penny Prizker to serve on the U.S. Department of Commerce’s Civil Nuclear Trade Advisory Committee (CINTAC). The CINTAC is composed of industry representatives from the civil nuclear industry and meets periodically throughout the year to discuss the critical trade issues facing the U.S. civil nuclear sector. Since June 2, 2015, Dr. Centofanti has been a member of the Supervisory Board of PF Medical. From 1985 until joining the Company, Dr. Centofanti served as Senior Vice President (SVP) of USPCI, Inc., a large publicly-held hazardous waste management company, where he was responsible for managing the treatment, reclamation and technical groups within USPCI.  In 1981, he founded PPM, Inc. (later sold to USPCI), a hazardous waste management company specializing in treating PCB contaminated oil.  From 1978 to 1981, Dr. Centofanti served as Regional Administrator of the U.S. Department of Energy for the southeastern region of the United States.  Dr. Centofanti has a Ph.D. and a M.S. in Chemistry from the University of Michigan, and a B.S. in Chemistry from Youngstown State University.

Mr. Ben Naccarato

Mr. Ben Naccarato

Chief Financial Officer, Vice President and Secretary

Mr. Naccarato has served as the Chief Financial Officer (CFO) since February 26, 2009.  Mr. Naccarato joined the Company in September 2004 and served as Vice President, Finance of the Company’s Industrial Segment until May 2006, when he was named Vice President, Corporate Controller/Treasurer. In July 2015, Mr. Naccarato was named the CFO of PF Medical, the Company’s majority-owned Polish subsidiary involved in the research and development of a new medical isotope production technology. Effective December 22, 2015, Mr. Naccarato was appointed to the Management Board of PF Medical. Mr. Naccarato has over twenty nine years of experience in senior financial positions in the waste management and used oil industries. From December 2002 to September 2004, Mr. Naccarato was the CFO of a privately held company in the fuel distribution and used waste oil industry. Mr. Naccarato is a graduate of University of Toronto having received a Bachelor of Commerce and Finance Degree and is a Chartered Professional Accountant, Certified Management Accountant (CPA, CMA).