清洁港湾 CLH

Eric W. Gerstenberg was appointed as the Company's Co-Chief Executive Officer and Co-President effective March 31, 2023 and has been a member of the Board since August 2024. Prior to his current role, Mr. Gerstenberg served as the Company's Chief Operating Officer since January 2015. Mr. Gerstenberg started with the Company in 1989 in Field Operations. From 1989 to 1997, he held a variety of management positions, including General Manager of multiple facilities. From 1997 to 1999, Mr. Gerstenberg was the Vice President of Operations for Pollution Control Industries, a privately-owned environmental services company. Mr. Gerstenberg rejoined the Company in June 1999 as Executive Vice President - Environmental Services and became President, Environmental Services in June 2014. Mr. Gerstenberg holds a BS in Engineering from Syracuse University. In 2017, he attended and received certification at the Harvard Business School Advanced Management Program (AMP193).

Michael L. Battles was appointed as the Company's Co-Chief Executive Officer and Co-President effective March 31, 2023, and has been a member of the Board since August 2024. He joined the Company in September 2013 as Senior Vice President, Corporate Controller and Chief Accounting Officer and was appointed as Executive Vice President and the Company's Chief Financial Officer in January 2016. Mr. Battles previously served in a variety of senior financial positions at PerkinElmer Inc., a global leader in human and environmental health. His roles included financial leadership of the Human Health business, Chief Accounting Officer, and acting Chief Financial Officer. Prior to PerkinElmer, Mr. Battles worked for Deloitte & Touche LLP in various positions of increasing management responsibility within the firm's audit function, including an assignment in accounting research at Deloitte & Touche LLP's national office. Mr. Battles is a member of the board of directors of Casella Waste Systems, Inc. (NASDAQ: CWST), a regional solid waste, recycling and resource management service company, and serves on its audit committee and nominating and ESG committee. He holds a BS in Business Administration with a concentration in Accounting from the University of Vermont and is a certified public accountant. He also has a Certificate in Cybersecurity Oversight issued by the National Association of Corporate Directors and Carnegie Mellon University.

Mr. McKim founded the Company in 1980 and has served as the Chairman of the Board of Directors since its founding and as the Chief Technology Officer since March 31, 2023. Prior to that, Mr. McKim had served as the Company's Chief Executive Officer and President since the Company's founding in 1980. Mr. McKim holds an MBA from Northeastern University's D'Amore - McKim School of Business and an honorary doctorate from the Massachusetts Maritime Academy. He serves on Northeastern University's Board of Trustees and South Shore Health's Board of Directors. On May 19, 2026, Alan S. McKim, serving in the capacities of Executive Chairman of the Board of Directors and Chief Technology Officer, notified the Board of his intention to retire from the Board and his role as Chief Technology Officer, effective upon the Board's appointment of a new Chairman.

Brian P. Weber was appointed as Executive Vice President and President, Safety-Kleen Sustainability Solutions effective March 31, 2023. Prior to his appointment in this position, Mr. Weber served as Executive Vice President, Corporate Planning and Development since 2010. Mr. Weber joined the Company in 1990. Throughout his tenure with the Company, he has served in a variety of management positions including Senior Vice President of Transportation, Vice President of Strategic Initiatives, Vice President of Central Services, and Vice President, Technical Services. He holds a BS in Business Management from Westfield State College.

eroen Diderich joined the Company in 2024, following an extensive career in a variety of executive management, sales, and operations roles. Prior to joining Clean Harbors, he spent 20 years at Avery Dennison, most recently serving as Senior Vice President of North America Materials Group, Global Reflective Solutions and Global Procurement. For more than a decade he held various senior management roles at Avery Dennison in marketing, sales and service, and supply chain while stationed in The Netherlands. Before his work at Avery, Mr. Diderich spent 11 years in the paper industry at SAPPI working on supply chain and strategy positions in multiple countries. Mr. Diderich holds a master's degree in economics and business economics from Erasmus University Rotterdam, The Netherlands as well as several subsequent certifications including the Advanced Management Program at the Wharton School at the University of Pennsylvania and Lean Six Sigma training.

Eric J. Dugas is Executive Vice President and Chief Financial Officer. He was appointed to that position effective March 31, 2023 and was previously Senior Vice President, Finance and Chief Accounting Officer since January 2016. He also continues to serve as the Company's principal accounting officer. Prior to joining the Company in March 2014, Mr. Dugas was employed by Deloitte & Touche LLP, where he held several positions of increasing management responsibility including an assignment in the firm's national office in accounting research. Mr. Dugas holds a BS in Accounting from Boston College and is a certified public accountant. In 2019, he attended and received certification at the Harvard Business School Advanced Management Program (AMP196).

Mr. Galante retired in 2006 after more than 30 years with Exxon Mobil Corporation. Prior to his retirement, he most recently served as a Senior Vice President and member of the Management Committee of Exxon Mobil Corporation. His principal responsibilities included the worldwide Downstream business: Refining & Supply, Fuels Marketing, Lubricants and Specialties Marketing and Research, and Engineering. He was also responsible for Exxon Mobil's corporate Public Affairs and Safety, Health and Environmental activities. Mr. Galante received his Bachelor of Science degree in civil engineering from Northeastern University, and he now serves as a Vice Chairman of Northeastern's Board of Trustees. He is currently a director of Celanese Corporation (NYSE: CE), where he chairs the board of directors. Within the past five years, Mr. Galante was also a director of Linde plc (NYSE:LIN), where he chaired the compensation and executive development committee and sat on the audit committee, and Marathon Petroleum Corporation, (NYSE: MPC) where he chaired the compensation and organizational development committee and served on the sustainability committee. Mr. Galante is also a director of the United Way Foundation of Metropolitan Dallas and of Artis-Naples.

Ms. Reed retired in 2021 after more than 30 years with National Grid, an investor-owned public utility providing New York, Rhode Island and Massachusetts with natural gas and electricity for homes and businesses. Prior to her retirement, she had served for a decade as President of National Grid Massachusetts and Executive Vice President U.S. Energy Policy and Social Impact. She has been a certified public accountant since 1988. A frequent speaker on topics of leadership, energy policy, innovation, and the evolving energy paradigm, she has been recognized with numerous leadership and philanthropic awards, including being named three times as one of Boston's Top 100 Leaders. In February 2022, Ms. Reed joined the board of Edison International (NYSE:EIX), the parent company of Southern California Edison. She serves as an independent director for Blue Cross Blue Shield of Massachusetts and is on the board of Northeastern University where she serves as the chair of the audit committee. She also is a board member of Qualus, a private equity-backed electric power engineering company. Ms. Reed previously served as board chair of The Partnership, Inc., an organization working to build racially diverse leadership pipelines. She earned an AB in Economics from Dartmouth College and an MS in Accounting from Northeastern University and holds Executive Education Certificates from the Wharton School of the University of Pennsylvania and INSEAD.

Ms. States retired in 2014 after more than 36 years with IBM. Prior to her retirement, she served as Vice President, Strategy and Transformation for IBM's Software Group and as a member of the Growth and Transformation senior leadership team. Her principal responsibilities included leading the global sales force strategy and go-to-market for IBM's multi-billion dollar software business. From 2008 to 2013, she was a leader in IBM's transformation to cloud computing, working with clients to provide insights to IBM's strategy and serving as Chief Technology Officer in the corporate strategy function. Over her career, she has served in a broad variety of roles including technology, transformation, sales, and talent development. Ms. States received her BS in Economics from The Wharton School of the University of Pennsylvania. In 2015, she completed a Fellowship with Harvard University's Advanced Leadership Initiative. She is a director of Webster Financial Corporation (NYSE:WBS) and Quid, a privately held company and, through early 2023, served on the board of directors of Diebold Nixdorf Inc. (NYSE:DBD). Ms. States serves as Trustee for International House, New York and Mercy High School in Middletown, Connecticut. Ms. States also serves on the board of Code Nation and previously served on the board of the New England Science and Sailing Foundation through April 2023.

Ms. Polito is the Principal of Polito Development Corporation, a commercial and industrial real estate development firm. She served as 72nd Lieutenant Governor of Massachusetts from 2015 to 2023. Prior to her election as Lieutenant Governor, Ms. Polito was a member of the Massachusetts House of Representatives and a Partner at Milton, Laurence & Dixon, LLP. She is an independent director for Beacon Financial Corporation (NYSE:BBT), following the merger of Berkshire Hills Bancorp, Inc. (NYSE:BHLB), a company for which Ms. Polito had previously been a board member, and Brookline Bancorp, Inc. Ms. Polito serves on the compensation committee and corporate governance and nominating committee of Beacon Financial Corporation. She also serves as an independent director for The Andover Companies, a private mutual insurance group. She holds a Bachelor of Science from Boston College and a Juris Doctor from New England Law School.

Ms. Robertson was the Group Executive, Corporate Treasurer of MasterCard Worldwide from 2003 to June 2010. Ms. Robertson held financial management positions with RR Donnelley & Sons Company from 1996 to 2003, and with International Business Machines Corporation (IBM) from 1984 to 1996. From 1979 to 1982, she was an auditor with Coopers & Lybrand. She holds a BS in Accounting from Merrimack College and an MBA in Finance/Management Information Systems from the University of Chicago. She is a certified public accountant. She is an Impact Partner for Prevent Child Abuse America, where she had previously sat on the board.

Robert Harrison is Executive Vice President, Health & Safety. He joined the Company in November 2022. Prior to joining the Company, Mr. Harrison was most recently the Health, Safety and Environmental (HSD) and Quality Vice President for Air Liquide American Corporation from 2016 to 2022, where he supported more than 800 locations and six business units that included responsibility for 2,000 miles of pipeline. Previously, Mr. Harrison held the positions of HSE director for Halliburton and for Rolls Royce. Prior to that, he held health and safety managerial roles at Honeywell and 3M. Mr. Harrison holds a Master of Science and Bachelor of Arts degrees in Occupational Safety and Health from Murray State University in Murray, Kentucky. He is also a Six Sigma Greenbelt, Certified Safety Professional, and Certified Industrial Hygienist.

George L. Curtis has served as Executive Vice President, Pricing & Proposals since 2009. He joined the Company in 1980, and has served in a variety of management positions, the most recent of which were Senior Vice President of Pricing and Proposals and Vice President of Marketing. Mr. Curtis holds a BA in Biology from Columbia University and an MBA from Northeastern University.

Rebecca Underwood has served as President, Facilities since August 2023. Ms. Underwood joined the Company in June 2022 as Executive Vice President of Facilities. Prior to joining the Company, she served as Senior Vice President - Safety, Operations, Maintenance, Engineering, Productivity at Covanta from June 2018 through June 2022. Prior to that, Ms. Underwood was Vice President, Integrated Supply Chain - Advanced Materials for Honeywell from December 2015 through April 2018. Ms. Underwood spent more than a decade holding a variety of senior management roles at Air Products based both in the U.S. and China, concluding as Director of Global Product Supply. Between her various roles at Air Products, she was the Asia Pacific Operations Director for Ferro Corporation. Ms. Underwood holds a Bachelor of Science degree in Mechanical Engineering from the University of Illinois Urbana-Champaign. She earned her Executive MBA from WUSL-Fudan University.

Sharon M. Gabriel is Executive Vice President and Chief Information Officer. She was appointed to that position in October 2018. She joined Clean Harbors in 2001 and has held a variety of positions of increasing responsibility with the most recent prior position being Senior Vice President of Management Information Systems. Ms. Gabriel is leading the Company's push toward innovative technologies related to artificial intelligence, robotic process automation, and many mobility applications and manages the Company's cybersecurity and cyber incident preparedness and response. She holds a BS in Environmental Science from New England College.

Charles H. Geer II is Executive Vice President of Industrial Services. He joined the Company in 2008 and has held a variety of positions of increasing responsibility with the most recent being Senior Vice President of the East Region in Environmental Sales and Service. Prior to that he served as the Senior Vice President of the Field Services National Business Line, overseeing the entire Field Service organization. Prior to joining Clean Harbors, he spent a decade at Philip Services Corp where he rose to Operations Manager. Mr. Geer holds a Bachelor of Science degree in Environmental Science from Oakland University.