Renewable Energy Group currently has an nine-member Board of Directors that sets high standards for the company's employees, officers and directors. Implicit in this philosophy is the importance of sound corporate governance. It is the duty of the board
to serve as a prudent fiduciary for shareholders and to oversee the management of the company's business.
Chairman of the Board
Jeffrey Stroburg has served as a member of the REG Board since June 2006. Mr. Stroburg has served as the Chief Executive Officer of Southern States Cooperative since May 2015. Mr. Stroburg served as the Chief Executive Officer of the Company from
June 2006 to September 2011. Mr. Stroburg concurrently served as Chief Executive Officer of West Central Cooperative ("West Central", now known as Landus Cooperative from October 1999 until January 2015. He also held the position of President of West
Central from July 2003 until January 2015. Prior to joining West Central, Mr. Stroburg was Vice President and Chief Operating Officer of the Eastern Ag Region of Land O’ Lakes, an agricultural cooperative, from 1998 to 1999. From 1997 to 1998, Mr.
Stroburg was President and Chief Executive Officer of Countrymark Cooperative, a refiner and distributor of diesel, gasoline and other petroleum products. From 1987 to 1997, Mr. Stroburg was President and Chief Executive Officer of Hamilton Farm Bureau
Cooperative and held positions within the Missouri Farmers Association. From 1997 to 1998, Mr. Stroburg also served as a director for A.C. Toepfer International, a Hamburg, Germany trading company for agricultural products, and as a director for CF Industries,
a fertilizer manufacturing company. Mr. Stroburg served on the board of directors for the Associated Benefits Corporation and the Cooperative Business International. Currently, Mr. Stroburg serves on the board of directors of the National Council of Farmer
Cooperatives. Mr. Stroburg holds a Bachelor of Science from Iowa State University.
Randolph L. Howard
Randolph L. Howard has served as a member of the Board since February 2007. He also was REG President and Chief Executive Officer from July 2017 to January 2018. From July 2004 to until his retirement in September 2005, Mr. Howard served as Senior Vice President of the Global Gas Division of Unocal Corporation, an oil company. Prior to that role, Mr. Howard served as Regional Vice President of Unocal’s International Energy Operations – North ASEAN and President with Unocal Thailand from May 1999 to June 2004. Mr. Howard served in various managerial roles at Unocal over 30 years including Vice President, Refining and Vice President, Supply, Trading and Transportation. Mr. Howard participated in the advanced executive program at Northwestern University and holds a Bachelor of Science in chemical engineering from University of California Berkeley.
President and Chief Executive Officer
Cynthia (CJ) Warner
For more than 35 years, CJ has held executive positions in the energy sector in operations, business development, strategy, technology development, and environment, health, and safety. She has led operations globally for large refiners including Andeavor
and BP as well as scale-up and development efforts in novel renewable energy technologies.
Prior to REG, Ms. Warner was Executive Vice President, Operations for Andeavor (formerly Tesoro), after serving as Andeavor’s Executive Vice President, Strategy and Business Development. Earlier roles include Chairman and CEO of Sapphire Energy,
where she led the development and scaled demonstration of the end-to-end algae to oil process; and Group Vice President of Global Refining for BP, plc.
Ms. Warner serves as a member of the Board of Directors for IDEX Corporation. She is also a member of the National Petroleum Council and the Vanderbilt University School of Engineering Academy of Distinguished Alumni.
Walter Berger joined REG’s Board of Directors in September 2020. Mr. Berger currently serves as President, Chief Operating Officer, and Director of KYMETA Corporation, a satellite technology and communications company headquartered in Redmond, Washington. Before joining KYMETA, Mr. Berger served as Chief Operating Officer & Chief Financial Officer at Nuvectra (NASDAQ), a company focused on innovating and developing leading hardware and software technology relating to its neurostimulation platform. Before that, Mr. Berger served as Chief Financial Officer of AppDynamics Inc., a venture-backed next-generation application intelligence company from October 2013 until March 2015. From 2012 until 2013, Mr. Berger was the Chief Financial Officer of private equity-owned SoftLayer, a cloud computing company that was acquired by IBM. From 2008 to 2012, Mr. Berger served as Chief Financial Officer at Leap Wireless International, Inc. (NASDAQ). He also served as Executive Vice President and Chief Financial Officer for each of CBS Radio, Inc. and Emmis Communications Corporation (NASDAQ). Prior to Emmis, Mr. Berger served as Group President of the Energy Marketing Division for LG&E Energy Corporation (NYSE), where he previously served as Executive Vice President and Chief Financial Officer. Mr. Berger has served on multiple for-profit and non-profit boards, including Sirius Computer Solutions, a national integrator of technology-based business solutions, until late 2017. Mr. Berger holds a B.A. in business administration from the University of Massachusetts, Amherst.
James C. Borel has served as a member of the Board since March 2018. Mr. Borel has served as a Director of Farmers Edge since May 2016, Director of Neogen Corporation since October 2016 and Director of Just, Inc., since October 2017. Mr. Borel retired
from his position as Executive Vice President at DuPont in 2016, having served the company since 1978. During his tenure at DuPont, Mr. Borel held various positions in sales management, human resources, agricultural products manufacturing and business
leadership. Mr. Borel also brings extensive international business experience with three assignments abroad and responsibilities extending beyond the U.S. for over 25 years. Mr. Borel holds a Bachelor of Science in agricultural business from Iowa
Delbert Christensen has served as a member of our Board since August 2006. Mr. Christensen was a director of West Central, from 1993 to 2014. Mr. Christensen was the Chairman of the Board of West Central from June 2010 to June 2012. Since January
2004, he has served as the President of CHMD Pork, a hog producer. He was Chairman of the Board of Directors of the Iowa Soybean Association from October 2009 to October 2010 and was on the Board of Directors of the Iowa Soybean Association from 2003
through 2014. He was on the executive board of the U.S. Meat Export Federation from January 2017 to January 2018. Mr. Christensen serves on the Soybean Promotion and Research Board and the United Soybean Board. Mr. Christensen holds a Bachelor of
Science in agricultural business from Iowa State University.
Debora M. Frodl has served as a member of our Board of Directors since March 2018. Ms. Frodl served as the Global Executive Director for Ecomagination at General Electric (GE) from December 2012 through December 2017, where she expanded the GE clean
technology strategy. From 2010 to 2012, Ms. Frodl served as Chief Strategy Officer & Global Alternative Fuels Leader for GE, leading the company to decarbonize its commercial fleet through deployment of alternative fuel vehicles. Prior to this
position, Ms. Frodl gained over twenty years of senior executive experience at GE Capital, serving in roles including Senior Vice President and CEO and President. Since 2014, Ms. Frodl has served as an ambassador for the Clean Energy, Education &
Empowerment for Women Initiative, a collaboration between U.S. Department of Energy, MIT and Stanford. She also has served as a Director for the Advanced Energy Economy, an organization of businesses working to make energy secure, clean and affordable
since 2014. Ms. Frodl holds a Master of Business Administration from the University of St. Thomas and a Bachelor of Science in Business Administration from Minnesota State University.
Peter J. M. Harding has served as a member of the Board since December 2014. Most recently, he was the Chief Executive Officer and a director of Westway Group, Inc. (“Westway”), a liquid storage and liquid animal feed business, from May
2009 until his retirement in June 2010. Prior to joining Westway, Mr. Harding served in various roles at ED&F Man Holdings Limited, including a member of the board of directors and as Managing Director, molasses and palm oil trading, feed products,
third-party storage and biofuels division. He also served as Chief Executive Officer of Westway Holdings Corporation from 1997 to 2006. Concurrent with his service as Chief Executive Officer, he served as President of Westway Terminal Company, Inc.,
from 2001 to 2004. From 1995 to 1997, Mr. Harding was Chief Executive Officer of ED&F Man’s North American Cocoa Processing Group and prior to that was Chief Executive Officer of Savannah Cocoa, Inc., from 1992 to 1995. Mr. Harding served
as Vice President of Sales & Marketing of Refined Sugars, Inc., from 1985 to 1989. Additionally, Mr. Harding owned and managed an asset management firm and commodity fund during the late 1980s and early 1990s.
Michael M. Scharf has served as a member of the Board since January 2012 and previously served as a member of the Board from August 2006 until December 2009. Mr. Scharf served as a director of Patriot Coal Corporation from November 2007 to December
2013 and previously served as a director of Southwest Iowa Renewable Energy, LLC, from 2007 to 2009. Mr. Scharf served as Executive Director, Global Financial Services from January 2010 until his retirement in July 2011 and served as Senior Vice President
and Chief Financial Officer of Bunge North America, Inc., the North American operating arm of Bunge Limited an agribusiness and food company, from 1989 to 2009. Prior to joining Bunge North America, Mr. Scharf served as Senior Vice President and Chief
Financial Officer at Peabody Holding Company, Inc., from 1978 to 1989 and as a Tax Manager at Arthur Andersen & Co. from 1969 to 1978. Mr. Scharf holds a Bachelor of Science in accounting from Wheeling Jesuit University and is a certified public
Christopher D. Sorrells has served as a member of our Board since November 2008. In September 2016, he was appointed to succeed Michael A. Jackson as Vice Chairman of our Board of Directors and in January 2019 transitioned to Lead Independent Director. Currently, he is Chief Executive Officer of Spring Valley Acquisition Corporation. From 2019 to 2020, he was Interim Chief Executive Officer of Wellsite Fishing & Rental Services and from 2015 to 2019 the Chief Operating Officer of GSE Systems, an engineering and expert staffing company for the power and process industries. From 2005 to 2015, he served as Managing Director at NGP Energy Technology Partners, L.P., a private equity firm investing in companies that provide products and services to the energy, power and environmental industries. From 2003 to 2005, Mr. Sorrells worked at Clarity Partners, a private equity firm, focused on growth and LBO transactions. Mr. Sorrells served as a principal with Banc of America Securities from 1998 to 2002 and as an associate with Salomon Smith Barney from 1996 to 1998. Mr. Sorrells holds an M.B.A. from the College of William and Mary, a Master of Accounting degree from the University of Southern California, and a B.A. from Washington and Lee University.