George C. McNamee, Director & Chairman of the Board

George C. McNamee serves as Chairman of the Company’s Board of Directors and has served as such since 1997. He was previously Chairman of First Albany Companies Inc. (now GLCH) and a Managing Partner of FA Tech Ventures, an information and energy technology venture capital firm. As an executive and director of numerous companies, Mr. McNamee has navigated technological change, rapid- growth, crisis management, team building and strategy. As a public company director, Mr. McNamee has led board special committees, chaired audit committees, chaired three boards and has been an active lead director. Mr. McNamee has previously served on several public company boards, including the boards of Mechanical Technology Inc. and the Home Shopping Network. He has been an early stage investor, director and mentor for private companies that subsequently went public including MapInfo (now Pitney Bowes), META Group (now Gartner Group) and iRobot Corporation, where he served as a director from 1999 to 2016 and as lead director for the last 11 of those years. In 2011, Mr. McNamee was the first history major awarded the Yale Science and Engineering Association Distinguished Service Award. He served as a NYSE director from 1999 to 2004 and chaired its foundation. In the aftermath of the 1987 stock market crash, he chaired the Group of Thirty Committee to reform the Clearance and Settlement System. Mr. McNamee has been active as a director or trustee of civic organizations including The Albany Academies and Albany Medical Center, whose Finance Committee he chaired for 12 years. He is also a director of several private companies, a Sterling Fellow of Yale University and a Trustee of The American Friends of Eton College. He conceived and co-authored a book on the Chicago Conspiracy Trial. He received his Bachelor of Arts degree from Yale University.

Gary K. Willis, Director

Gary K. Willis has been a director of the Company since 2003. Mr. Willis previously served as the President of the Zygo Corporation (“Zygo”) from February 1992 to 1999 and the Chief Executive Officer from 1993 to 1999. Mr. Willis served as a director of Zygo from 1992 to November 2000, including as Chairman of the board from 1998 to 2000. Zygo, which was acquired in 2014 by Ametek, Inc., was a provider of metrology, optics, optical assembly, and systems solutions to the semiconductor, optical manufacturing, and industrial/automotive markets. Prior to joining Zygo, Mr. Willis served as the President and Chief Executive Officer of The Foxboro Company, a manufacturer of process control instruments and systems. Mr. Willis holds a Bachelor of Science degree in Mechanical Engineering from Worcester Polytechnic Institute.

Maureen O. Helmer, Esq., Director

Maureen O. Helmer has been a director of the Company since 2004. Ms. Helmer worked at the law firm Barclay Damon, LLP until her retirement in 2021 as a senior member of the firm’s energy and telecommunications Regulatory Practice Area. Prior to joining Barclay Damon, LLP, Ms. Helmer was a member of Green & Seifter Attorneys, PLLC. From 2003 through 2006, she practiced as a partner in the law firm of Couch White, LLP and then as a solo practitioner. Ms. Helmer has advised international energy, telecommunications and industrial companies on policy and government affairs issues. In addition to serving as Chair of the New York State Public Service Commission (“PSC”) from 1998 to 2003, Ms. Helmer also served as Chair of the New York State Board on Electric Generation Siting and the Environment. Prior to her appointment as Chair, Ms. Helmer served as Commissioner of the PSC from 1997 until 1998 and was General Counsel to PSC from 1995 through 1997. From 1984 through 1995, Ms. Helmer held several positions in the New York Legislature, including Counsel to the Senate Energy Committee. She also served as a board member of the New York State Energy Research and Development Authority, the New York State Environmental Board and the New York State Disaster Preparedness Commission during her tenure as Chair of the PSC. In addition, she was Vice Chair of the Electricity Committee of the National Association of Regulatory Utility Commissioners and a member of the NARUC Board of Directors. She was also appointed to serve as a member of the New York State Cyber-Security Task Force. She formerly served as a board member of the Center for Internet Security, the Center for Economic Growth, and New York Women in Communications and Energy. Ms. Helmer earned her Bachelor of Science from the State University at Albany and her Juris Doctorate from the University of Buffalo law school. She is admitted to practice law in New York.

Andrew Marsh, Director, President & CEO

Andrew J. Marsh joined the Company as President and Chief Executive Officer in April 2008 and has been our director since 2008. As President and Chief Executive Officer, Mr. Marsh plans and directs all aspects of the organization’s policies and objectives, and is focused on building a company that leverages Plug Power’s combination of technological expertise, talented people and focus on sales growth to continue the Company’s leadership stance in the future alternative energy economy. Mr. Marsh continues to spearhead hydrogen fuel cell innovations, and his ability to drive revenue growth landed Plug Power on Deloitte’s Technology Fast 500TM list in 2015 and 2016. Mr. Marsh also serves on the board of directors of Gevo, Inc., a publicly traded renewable chemicals and advanced biofuels company. Previously, Mr. Marsh was a co-founder of Valere Power, where he served as chief executive officer and board member from the company’s inception in 2001, through its sale to Eltek ASA in 2007. Under his leadership, Valere grew into a profitable global operation with over 200 employees and $90 million in revenue derived from the sale of DC power products to the telecommunications sector. During Mr. Marsh’s tenure, Valere Power received many awards such as the Tech Titan award as the fastest growing technology company in the Dallas Fort Worth area and the Red Herring Top 100 Innovator Award. Prior to founding Valere, he spent almost 18 years with Lucent Bell Laboratories in a variety of sales and technical management positions. Mr. Marsh is a prominent voice leading the hydrogen and fuel cell industry. Nationally, he is the Chairman of the Fuel Cell and Hydrogen Energy Association, and is a member of the Hydrogen and Fuel Cell Tactical Advisory Committee (“HTAC”). HTAC has the important responsibility to provide advice to the Department of Energy regarding its hydrogen and fuel cell program goals, strategies, and activities. Internationally, Mr. Marsh represents Plug Power in its role as supporting members of the Hydrogen Council, a global initiative of leading energy, transport and industry companies with a united vision and long-term ambition for hydrogen to foster the energy transition. Mr. Marsh holds an MSEE from Duke University and an MBA from SMU.

Johannes Minho Roth, Director

Johannes M. Roth has been a director since April 2013. Mr. Roth is the founder and, since 2006, has been Managing Director and Chairman of FiveT Capital Holding AG, an investment holding company based in Switzerland with businesses specializing in asset management, risk management and alternative investments. Since 2006, Mr. Roth has been a board member of FiveT Capital AG, Zürich, Switzerland, which advises several long-only funds and operates an asset management business for high net-worth individuals. We believe Mr. Roth’s qualifications to sit on our Board of Directors include his background in financial investments, financial and risk management and equity capital markets as well as his experience in management positions.

Gregory Kenausis, Director

Gregory L. Kenausis has been a director of the Company since October 2013. Dr. Kenausis is the founding partner and since 2005 has been the Chief Investment Officer of Grand Haven Capital AG, an investment firm, where he is the head of research and trading activity and is responsible for managing the fund’s operations and structure. He also has worked extensively as a business consultant with a focus on business development and strategy, as well as valuation. Dr. Kenausis earned a bachelor’s degree from Yale University and a doctoral degree from the University of Texas at Austin.

Luke Schneider, Director

Lucas P. Schneider has served as a director of the Company since March 2017. Mr. Schneider is the Chief Executive Officer of Refraction AI, an autonomous robot delivery company. Prior to his current role, Mr. Schneider was the Chief Operating Officer of Wejo, Ltd., a connected vehicle data marketplace from 2019 to 2020. From 2012 until December 2018, Mr. Schneider served as the Chief Executive Officer of Silvercar, a vehicle mobility technology. In 2017, Silvercar was acquired by Audi AG. Prior to Silvercar, Mr. Schneider served as Chief Technology Officer of Zipcar, a car-sharing company, continuing in the role he played at Flexcar after it was acquired by Zipcar. Earlier in his career he also held various leadership positions with companies including Ford Motor Company, Verticalnet, and PRTM Management Consulting. Mr. Schneider received a Master of Business Administration, specializing in Operations and Strategy from the Tepper School of Business at Carnegie Mellon University and a Bachelor of Science degree in Mechanical Engineering from University of Texas at Austin.

Jonathan Silver, Director

Jonathan M. Silver has served as a director of the Company since June 2018. He is a Senior Advisor to Guggenheim Partners, a large asset manager and investment bank, where he works with a wide array of the firm’s clean energy and sustainability clients. Mr. Silver is considered one of the nation’s leading clean economy investors and advisors. From 2009 to 2011, he led both the federal government’s $40 billion clean energy investment fund and its $20 billion fund focused on advanced vehicle technology. From 2011 to 2018, he was a Senior Advisor to ICF, one of the country’s largest energy and environmental consulting firms, NextEra, the nation’s largest energy provider, and Marathon Capital, a leading power industry-focused investment bank. From 2015 to 2019, Mr. Silver served as the Managing Partner of Tax Equity Advisors LLC, an advisory firm managing investments in solar power projects on behalf of large corporations. He currently sits on the boards of National Grid (NGG:NSYE), a global utility, the EG Acquisition Corporation and Intellihot, a leading player in the tankless water heating sector. Earlier, he served on the board of Eemax and Sol Systems. From 1999 to 2008, Mr. Silver was the co-founder of Core Capital Partners, a successful venture capital investor in battery technology, advanced manufacturing, telecommunications and software. From 1990 to 1992, he was a Managing Director, and the Chief Operating Officer of Tiger Management, one of the country’s largest and most successful hedge funds. He has also held senior operating positions, including chief operating officer and executive vice president, in several companies. Mr. Silver began his career in 1982 at McKinsey and Company, a global management consulting firm, working on strategic issues for some of the nation’s largest financial institutions and corporations. Mr. Silver has served as a senior advisor to three U.S. Cabinet Secretaries: Commerce (1992 to 1993), Interior (1993 to 1995) and Treasury (1992 to 1994). He is on the board of Resources for the Future and has been on the boards of the American Federation of Scientists, the Wind Energy Foundation and American Forests.

Kimberly Harriman, Director

Kimberly A. Harriman has served as a director of the Company since February 2021. Since 2020, Ms. Harriman is the Vice President of State Government Relations & Public Affairs at Avangrid, Inc., a NYSE-listed energy provider operating in 24 states. Prior to joining Avangrid, from 2016 to December 2020, Ms. Harriman served as Senior Vice President, Public and Regulatory Affairs, for New York Power Authority, the largest public utility in the United States. Previously Ms. Harriman was General Counsel for the New York State Department of Public Service from 2014 to July 2016. Ms. Harriman received a J.D. from the Albany Law School of Union University and a Bachelor of Arts degree in Political Science and Economics from Siena College.

Kyungyeol Song, Director

Kyungyeol Song has been a director of the Company since February 2021. Dr. Song is the Head of Quantum Growth TF at SK E&S Co., Ltd. Prior to his current position, Dr. Song served as the Senior Vice President in Energy Solution TF at SK Group Supex Council from February 2019 until August 2020. Dr. Song also served as the Director of the McKinsey Energy Center from February 2007 until December 2018. Dr. Song received a Ph.D. in Control and Estimation Theory, Aeronautics and Astronautics from the Massachusetts Institute of Technology, a Master of Science in Aerospace Engineering from Seoul National University, and a Bachelor of Science degree in Aerospace Engineering from Seoul National University.

Jean Bua, Director
Jean A. Bua currently is the Executive Vice President, Chief Financial Officer, Chief Accounting Officer and Treasurer of NetScout Systems, Inc. (NASDAQ: NTCT), a provider of real-time operational intelligence and performance analytics for service assurance and cyber security solutions. Prior to NetScout, Ms. Bua served as Executive Vice President, Finance & Treasurer of American Tower Corporation, an operator of wireless and broadcast communications infrastructure, and spent nine years at Iron Mountain, Inc., an information management services company, concluding as Senior Vice President, Chief Accounting Officer and Worldwide Controller. She also previously held senior positions at Duracraft Corp. and Keithley Instruments and was a management consultant at Ernst & Young LLP and an auditor at KPMG LLP. She has led all global financial operations, including M&A analysis, acquisition integration, capital market strategy, financial planning and analysis, international tax, financial systems and compliance for high-growth, transformative public companies. Ms. Bua served as a board member and audit committee chair for Coresite Realty until its acquisition at the end of 2021. Ms. Bua earned a Bachelor of Science in Business Administration, summa cum laude, from Bryant College and an M.B.A. from the University of Rhode Island.
Kavita Mahtani, Director
Kavita Mahtani is Chief Financial Officer, Americas for London-headquartered HSBC. Based in New York, Ms. Mahtani manages a finance organization across the U.S., Canada, Mexico, and South America. In her role, Ms. Mahtani drives growth and M&A strategy, as well as restructuring and re-engineering efforts alongside the Chief Executive Officer. Prior to joining HSBC, Ms. Mahtani served in several leadership roles during her 14-year tenure with Citigroup, Inc., including Managing Director — Global Head of Asset and Liability Management, Chief Financial Officer, Global Corporate and Investment Banking, and Managing Director — Global Head of Financial Planning and Analysis, among others. Ms. Mahtani has also held roles with Morgan Stanley and Merrill Lynch & Company, Inc. Ms. Mahtani holds a Bachelor of Science degree in Economics from the University of Pennsylvania, The Wharton School, and a Master of Business Administration from the University of Chicago’s Graduate School of Business.