Mark Duff

Mark Duff

President and Chief Executive Officer

Mr. Duff has held the position of President and CEO of the Company since September 2017. Since joining the Company in June 2016 and prior to being named the President and CEO, Mr. Duff held the positions of Chief Operating Officer and Executive Vice President of the Company. Since joining Perma-Fix, Mr. Duff has developed and implemented strategies to meet aggressive growth objectives in both the Treatment and Services Segments. In the Treatment Segment, he has upgraded each facility to increase efficiency and modernize treatment capabilities to meet the changing markets associated with the waste management industry. In the Services Segment, which encompasses all field operations, he has completed the revitalization of business development programs which has resulted in increased competitive procurement effectiveness and broadened the market penetration within both the commercial and government sectors. Both of these implemented strategies have contributed to continuous growth in revenues and profitability. Mr. Duff has over 30 years of management and technical experience in the 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. 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 EVP 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. 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).

On March 3, 2021, Mr. Naccarato was appointed to serve as an independent director of PyroGenesis Canada, Inc., a high-tech company involved in the design, development, manufacture and commercialization of advanced plasma processes and products and whose stock is listed for trading on the Toronto (PYR) and NASDAQ (PYR) Stock Exchanges. Effective March 11, 2021, Mr. Naccarato was appointed to serve as a member of both the Audit Committee and Compensation Committee of PyroGenesis.

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.

Richard Grondin

Richard Grondin

Executive Vice President of Waste Treatment Operations

On July 22, 2020, the Company’s Board of Directors elected Mr. Richard Grondin to the position of Executive Vice President of Waste Treatment Operations and an executive officer of the Company. Since joining the Company in 2002, Mr. Grondin has held various positions within the Company’s Treatment Segment, including Vice President of Technical Services, Vice President/General Manager of the Perma-Fix Northwest Richland, Inc. (“PFNWR”) Facility and Vice President of Western Operations.

Mr. Grondin, a Project Management Professional (“PMP”), has over 35 years of management and technical experience in the highly regulated and specialized radioactive/hazardous waste management industry with the majority of his experience concentrated on managing start-up waste management processing and disposal facilities for four different organizations in the commercial and government sectors. Prior to joining the Company, Mr. Grondin held the position of Vice President of Mixed Waste Operations for Allied Technology Group (“ATG”) in Richland, WA; Vice President of Operations for Waste Control Specialists (“WCS”) in Andrews TX; and Technical Manager/Director of Operations for Rollins Environmental Services Facility in Deer Trail, CO.

In his positions with the Company, Mr. Grondin, together with others, transformed the PFNWR facility to a profitable subsidiary after its acquisition by the Company. Prior to his employment with the Company, he managed the startup of ATG Mixed Waste facility and the startup of WCS facility.

Mr. Grondin is recognized in the United States and Canada as an authority in hazardous and mixed waste treatment. He has been involved in the treatment of several hundred thousand tons of waste in the last 35 years.

Mr. Grondin has a Diploma of Collegial Studies in Pure and Applied Sciences from CEGEP of Amiante (Thetford-Mines, Canada) and Analytical Chemistry Techniques from CEGEP of Ahuntsic (Montreal, Canada), Geography minor from Montreal University (Montreal, Canada) and a Certificate of Business Management from the School of Higher Commercial Studies from Montreal University (Montreal, Canada).