美国废物管理 WM

Mr. Morris, Executive President and Chief Operating Officer since May 2025. Executive Vice President and Chief Operating Officer from 2019 to May 2025. Effective May 13, 2026, Mr. Morris voluntarily resigned from the position of Chief Operating Officer.

On May 13, 2026, the Company announced that its Board of Directors has promoted Ms. Tara J. Hemmer to the position of Executive Vice President and Chief Operating Officer. Ms. Hemmer, age 53, has served as the Company's Senior Vice President and Chief Sustainability Officer since 2021.Hemmer joined WM in 1999 and has progressed through various leadership roles, including Senior Vice President of Field Operations, Senior Vice President of Operations, Safety and Environmental Compliance, Vice President of Disposal Operations, Area Vice President for the Greater Mid-Atlantic Area and, most recently, Chief Sustainability Officer. She graduated from Cornell University with a Bachelor of Science in Civil and Environmental Engineering.

Mr. David L. Reed, Executive Vice President and Chief Financial Officer since November 2025. Vice President, Business Partner-West Tier Operations from 2023 to October 2025. Vice President and Treasurer from July 2017 to December 2022.

Ms. Kathleen M. Mazzarella has served as President and Chief Executive Officer of Graybar Electric Company, Inc. since 2012, and as Chairman since 2013. During her more than 45-year tenure at Graybar, Ms. Mazzarella has held numerous executive-level positions in operations, sales, human resources, strategic planning and marketing, including Executive Vice President and Chief Operating Officer, Senior Vice President-Sales and Marketing and Senior Vice President-Human Resources and Strategic Planning. Ms. Mazzarella has been instrumental in developing and communicating Graybar's commitment to sustainability initiatives. Graybar focuses on sustainability in the way it operates and in the innovative solutions it provides to its customers. The company offers energy-saving products, renewable energy solutions and supply chain services that support sustainable construction, renovation and maintenance of infrastructure and facilities. The company also invests in the communities it serves and emphasizes integrity, inclusion and opportunity for all employees. Ms. Mazzarella brings her deep and valuable experience leading a diverse range of business functions necessary for an employee-driven, customer-focused business, similar to our Company. Through her role as Chief Executive Officer and her service on the board of directors and key committees for other public companies, she has developed expertise in the evolving social and corporate governance landscape. In addition to her experience overseeing financial reporting and controls, technology systems and platforms, and other functional and operational areas, she has particular experience in the area of human capital management, including succession planning, diversity and inclusion initiatives, and oversight of corporate culture. Ms. Mazzarella also brings expertise in labor relations, public policy, operational innovation and strategic planning. Ms. Mazzarella holds an associate degree in telecommunications engineering, a bachelor's degree in applied behavioral sciences from National Louis University, and a master's degree in business administration from Webster University. In addition to the public company boards listed above, Ms. Mazzarella also serves as Chair of the board of the National Association of Wholesaler-Distributors (NAW) and previously served on the board of the NAW Institute for Distribution Excellence. Ms. Mazzarella previously served as Chairman of the Federal Reserve Bank of St. Louis, and she has experience serving on various organizational and charitable boards including the United Way of Greater St. Louis and the executive committee of Greater St. Louis, Inc. Position and Business Experience: Director of Cigna Corporation since 2018. Director of Core & Main since 2019.

Ms. Victoria M. Holt joined Proto Labs, Inc. as President, Chief Executive Officer and a Director in 2014, retiring in 2021. With manufacturing facilities in five countries, Proto Labs is a leading e-commerce technology enabled digital manufacturer of custom prototypes and on-demand product parts. Ms. Holt began her career at Monsanto Company, where she held various assignments of increasing responsibility before moving to Solutia, Inc., a divestiture of the Monsanto Company's chemical business, as Vice President and General Manager Performance Films. Ms. Holt later held various roles with PPG Industries, Inc., a leading coatings and specialty products company, including Senior Vice President of Glass and Fiber Glass. Ms. Holt then served as President and Chief Executive Officer of Spartech Corporation, a leading provider of plastic sheet, compounds and packaging products, until its sale to PolyOne in 2013. Ms. Holt has a diverse international business background serving a wide spectrum of customers looking for sustainable solutions across diverse end markets including plastics, materials, automotive, medical, aerospace, consumer and general industrial. Ms. Holt brings passion and extensive experience in the areas of sustainable innovation, environmental solutions, plastics operations and management and recycling to the Board. Ms. Holt's proven success leading large global companies across a broad range of manufacturing, chemical and materials industries has demonstrated her deep understanding of risk management, operations, strategic planning and performance measurement. Ms. Holt provides tremendous insight into the areas of continuous improvement, use of data analytics, e-commerce, digitally connected operations and execution of our technology-led, sustainability-linked strategy to grow our business and mitigate climate risks. Ms. Holt has developed expertise in corporate governance through her service, including holding committee leadership roles, on the public company boards listed above as well as private company boards, and she shares this expertise with the Company's Board in her position as Chair of the Nominating and Governance Committee. Position and Business Experience: Director of Piper Sandler Companies since 2019. Director of A. O. Smith Corp. since April 2021. Ms. Holt holds a bachelor's degree in chemistry from Duke University and a master's degree in business administration from Pace University. Ms. Holt has completed the National Association of Corporate Directors (NACD) Cyber Risk Oversight Program and earned the CERT Certificate in Cybersecurity Oversight.

Mr. Bruce E. Chinn, Before his retirement in 2024 from the positions of President, Chief Executive Officer and a Director of CPChem, Bruce Chinn focused on leading the company through a period of sustainable growth. Mr. Chinn has over 40 years of experience driving operational, safety, and financial results. Previously, he held several operations and business roles at Chevron Corporation, leading large, diverse organizations. In these roles, Mr. Chinn focused on performance, partnership, and safety, while striving for continued success in the business and community. Mr. Chinn began his career at DuPont, where he held positions of increasing responsibility in manufacturing, technical, commercial and business leadership at the U.S. and international level. Mr. Chinn brings extensive knowledge of circular solutions and renewable energy that is aligned with our Company's strategic focus on making sustainability growth investments in our recycling and renewable energy businesses. His operations leadership expertise bolsters our continued efforts to drive operating efficiencies, enhance our safety culture and differentiate our service offerings. Mr. Chinn's broad and expansive dedication to operating excellence and developing strong corporate culture provides valuable perspective to the Board, and his experience allows him to share specific insight into focus areas such as renewable energy transition, environmental regulation and compliance, international exposure and risk management. Mr. Chinn serves as a board director for the Texas A&M University Association of Former Students. Mr. Chinn holds a bachelor of science degree in chemical engineering from Texas A&M University. Position and Business Experience: Director of Celanese Corporation since September 2024.

Ms. Maryrose T. Sylvester, As U.S. Managing Director and U.S. Head of Electrification for ABB Ltd., Maryrose Sylvester was responsible for ABB's largest geographical market and the implementation of operational innovations. Ms. Sylvester also championed the company's diversity and inclusion efforts and accelerated ABB's Encompass Diversity program. Prior to joining ABB Ltd., Ms. Sylvester spent more than 30 years at General Electric, where she held a number of leadership roles, including serving as President and Chief Executive Officer of each of GE Lighting, GE Intelligent Platforms, which focused on industrial automation, and GE Current, a digital power service business that delivers integrated energy systems. Ms. Sylvester was instrumental in launching the GE Women's Network. Ms. Sylvester is a strategic, growth-oriented leader with a focus on the areas of technology, innovation and automation. Through her prior experience, Ms. Sylvester has developed expertise in delivering technology-enabled and energy-efficient sustainable solutions. Ms. Sylvester provides experience and extensive knowledge of product development, marketing, technology and supply chain strategy to the Board. Ms. Sylvester has in-depth expertise in the area of improving energy efficiency in response to climate risk. Ms. Sylvester also shares insight from her prior experience to inform our strategy to improve processes and drive efficiency through automation. Ms. Sylvester is passionate about advancing diversity and inclusion and has expertise developing and driving such initiatives in the workplace. Ms. Sylvester also brings valuable governance experience from her service on the public company boards listed above. She holds a bachelor's degree in procurement and production management from Bowling Green State University and a master's degree in business administration from Cleveland State University. Position and Business Experience: Director of Harley-Davidson, Inc. since 2016. Director of Vontier Corporation since March 2021. Director of Flex Ltd. since September 2022.

Johnson Varkey, Senior Vice President and Chief Information Officer since January 2024. Vice President and Chief Information Officer from March 2023 to December 2023. Vice President-Enterprise Digital Services from September 2019 to March 2023. Senior Vice President and Chief Information Officer, Centrica (an international energy and services company) from March 2019 to August 2019.

Donald J. Smith, Senior Vice President-Operations since January 2023. Area Vice President-Texas & Oklahoma Area from 2012 to December 2022.

Mr. John A. Carroll, Vice President and Chief Accounting Officer since March 2023. Vice President, Internal Audit and Controls from 2018 to March 2023.

Michael J. Watson, Senior Vice President and Chief Customer Officer since October 2018. Area Vice President-Illinois & Missouri Valley Area from 2013 to September 2018.

Charles C. Boettcher, Executive Vice President, Corporate Development and Chief Legal Officer since February 2020. Senior Vice President, Corporate Development and Chief Legal Officer from May 2019 to February 2020. Senior Vice President and Chief Legal Officer from 2017 to May 2019; Positions Held and Business Experience for Past Five Years:- Executive Vice President and Chief Legal officer since July 2024. Executive Vice President, Corporate Development and Chief Legal Officer from 2020 to July 2024.

Christopher P. DeSantis, Senior Vice President, Operations since October 2023. Area Vice President, New England from 2009 to October 2023.