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Leonhard Birnbaum is a German businessperson who has been at the helm of 11 different companies is Chief Operating Officer-Integration at E.ON SE, Member-Management Board at RWE Energy AG and Vice President at Union of Electricity Industry and on the board of 5 other companies. He previously was Chief Commercial Officer & Member-Executive Board at RWE AG and Chairman-Supervisory Board of RWE Supply & Trading GmbH (a subsidiary of RWE AG), Member-Supervisory Board at Wintershall Dea International GmbH, Chairman-Supervisory Board of E.ON Sverige AB, Chairman-Supervisory Board for E.ON Hungária Zrt., Chairman at E.ON Ceská republika sro, Chairman-Supervisory Board of E.ON Czech Holding AG, Chairman at E.ON Distribuce as, Chairman-Supervisory Board for E.ON Global Commodities SE, Chairman for Uniper Technologies GmbH and Senior Partner at Mckinsey & Co., Inc. (Germany). Leonhard Birnbaum received a doctorate from Brandenburg University of Technology Cottbus and an undergraduate degree from the University of Karlsruhe.

Robert David Birnbaum was the founder of TAKKLE, Inc. (founded in 2005) where he held the title of Chief Executive Officer from 2005 to 2009.
He was also the founder of Third Wave Global Investors LLC (founded in 2004) where he served as President from 2004 to 2011.
Currently, Mr. Birnbaum is the President, Chief Executive & Commercial Officer at The Growth For Good Acquisition Corp.
(since 2021).
In the past, he held positions such as Managing Director at Credit Suisse Asset Management LLC (from 1998 to 2001), Independent Director at Global Long Short Partners LP, Managing Director at J.P.
Morgan Investment Management Ltd.
(in 1998), and President at Broadway Video Ventures LLC (from 2010 to 2018).
Mr. Birnbaum's education includes a graduate degree from The Trustees of Columbia University in The City of New York and an MBA from the University of Pennsylvania.

Mr. Jeffrey Birnbaum, CFA MBA, is Equity Research Analyst at Wunderlich Securities, Inc. Prior to joining Wunderlich Securities in September 2014, he was employed as Equity Research Analyst by UBS Securities LLC, a Research Analyst by Morgan Stanley & Co., Inc., and an Assistant Vice President by JPMorgan Chase Bank NA.
Mr. Birnbaum received his undergraduate degree from Cornell University and an MBA from The Leonard N Stern School of Business.