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.

Dr. Louis F. Centofanti

Dr. Louis F. Centofanti

Executive Vice President of Strategic Initiatives

Dr. Centofanti currently holds the position of Executive Vice President of Strategic Initiatives. Effective January 26, 2018, Dr. Centofanti was appointed to the position of President of Perma-Fix Medical, a majority-owned foreign subsidiary of the Company.  From March 1996 to September 8, 2017 and from February 1991 to September 1995, Dr. Centofanti held the position of President and Chief Executive Officer of the Company. Dr. Centofanti served as Chairman of the Board from the Company’s inception in February 1991 until December 16, 2014. In January 2015, 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. From 1985 until joining the Company, Dr. Centofanti served as Senior Vice President 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

Executive Vice President and Chief Financial Officer

Mr. Naccarato has served as the Company’s CFO since February 26, 2009. On January 16, 2020, Mr. Naccarato was promoted to Executive Vice President and CFO from Vice President and CFO. 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. Since July 2015 and December 2015, Mr. Naccarato has served as the CFO of PF Medical and a member of the Management Board of PF Medical, respectively.  PF Medical is the Company’s majority-owned Polish subsidiary involved in the research and development of a new medical isotope production technology. Mr. Naccarato has over 30 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 with a Bachelor of Commerce and Finance Degree and is a Chartered Professional Accountant, Certified Management Accountant (CPA, CMA).

Andrew J. Lombardo, CHP

Andrew J. Lombardo, CHP

Executive Vice President of Nuclear and Technical Services

On January 16, 2020, the Company’s Board elected Mr. Lombardo to the position of EVP of Nuclear and Technical Services and an executive officer of the Company. Since joining the Company in 2011, Mr. Lombardo has held various positions within the Company’s Services Segment, including Senior Vice President of Nuclear and Technical Services for the Segment. Since May 2, 2019, Mr. Lombardo has held the position of a member of the Supervisory Board of PF Medical.

Mr. Andrew Lombardo, a Certified Health Physicist (“CHP”), has over 35 years of management and technical experience in the commercial nuclear reactor market, the U.S Department of Energy (“DOE”) and the U.S. Department of Defense (“DOD”) environmental and construction markets as a senior director, senior project manager, senior CHP and chemist. Prior to joining the Company, Mr. Lombardo held the position of Vice President of Technical Services for Safety and Ecology Corporation (“SEC”) prior to the acquisition of SEC by the Company in 2011. In his positions with both the Company and SEC, Mr. Lombardo procured and performed greater than $20M a year in health physics and radioactive material management projects across the DOE and DOD complex while managing a professional staff of engineers and health physicists and an instrumentation laboratory. Prior to his employment with the Company and SEC, he managed decommissioning projects for two engineering firms which included the successful deployment of soil segregation technology, resulting in client savings of more than $100M in transportation and disposal costs. During this time, he developed an expertise characterizing and managing naturally occurring radioactive material (“NORM”) and technologically enhanced NORM (“TENORM”) waste streams across multiple industries including oil and gas exploration and production. As a result of his expertise, he was recently appointed to the National Council on Radiation Protection and Measurement Committee to provide a commentary on the generation and disposal of TENORM waste. Mr. Lombardo began his career as a chemist and health physicist for the Duquesne Light Company at two commercial reactor sites and one joint DOE/Naval Reactors Duquesne Light test reactor in Shippingport, PA. Mr. Lombardo is certified in comprehensive practice of health physics, has a M.S. degree in Health Physics from the University of Pittsburgh and a B.S. in Natural Sciences from Indiana University of Pennsylvania.