Randolph L. Howard has served as a member of our Board since February 2007 and as our President and Chief Executive Officer since July 2017. 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 B.S. in Chemical Engineering from University of California Berkeley.
Chad Stone has served as our Chief Financial Officer since August 2009. Prior to joining REG, from October 2007 to May 2009, he was a Director at Protiviti Inc., a global business consulting and internal audit firm. From August 1997 to September 2007, Mr. Stone served as Director with PricewaterhouseCoopers and he worked at Arthur Andersen from July 1992 to August 1997, departing as a manager. Mr. Stone was elected to the governing Board of the National Biodiesel Board in 2015 and has served as secretary since November 2016. Mr. Stone served on the executive Board of the Iowa Biodiesel Board from September 2010 to September 2016, serving as chair from 2014-2015. Since October 2015, Mr. Stone has served on the University of Iowa School of Management's Advisory Committee. Mr. Stone has over 20 years of experience in leading financial reporting, strategy, policy and compliance. Mr. Stone holds an M.B.A. with concentrations in finance, economics and accounting from the University of Chicago, Graduate School of Business and a B.B.A in Accounting from the University of Iowa. He is also a Certified Public Accountant.
Brad Albin has served as our Vice President, Manufacturing since February 2008. Mr. Albin joined REG in 2006. From 2002 to 2006, Mr. Albin served as Executive Director of Operations for Material Sciences Corporation, where he directed multiplant operations for automotive and global appliance industries. From 1996 to 2002, Mr. Albin was the Vice President of Operations for Griffin Industries. Mr. Albin has over 25 years of experience in executive operations positions in multi-feedstock biomass-based diesel, chemical, food and automotive supplier companies, such as The Monsanto Company, The NutraSweet Company and Griffin Industries. Mr. Albin was a charter member of the National Biodiesel Accreditation Committee. Mr Albin is a current director on two boards where REG has investments and was previously on the Board of Managers for Petrotec GmbH before REG acquired full ownership in 2017. Mr. Albin was previously the President and Vice President of the Iowa Renewable Fuels Association from 2011-2013. In November 2014, Mr. Albin completed the Advanced Management Program from the University of Chicago Booth School of Business and he holds a B.S. in Chemistry from Eastern Illinois University.
For more than 10 years, Eric Bowen has been at the forefront of development for start-up companies with an emphasis on biofuels. Mr. Bowen is an expert within the management and legal fields with an emphasis on venture capital financings, mergers and acquisitions, joint ventures and IPOs. Prior to joining REG, Mr. Bowen was Founder, President & CEO of Tellurian Biodiesel, Inc. (acquired by REG). He has also led Sigma Capital's biodiesel project finance group and practiced law in Silicon Valley at Venture Law Group. Mr. Bowen served as Chairman for the California Biodiesel Alliance until 2012.
Gary Haer has served as our Vice President, Sales and Marketing since we commenced operations in August 2006. From October 1998 to August 2006, Mr. Haer served as the National Sales and Marketing Manager for biodiesel for West Central Cooperative, now known as Landus Cooperative, and was responsible for developing the marketing and distribution infrastructure for biomass-based diesel sales in the United States. Mr. Haer has over 20 years of experience in the biomass-based diesel industry. Mr. Haer previously served on the Executive Committee of the National Biodiesel Board’s Governing Board and was Past Chairman. He held various officer positions during his tenure from 1998 to 2017. Mr. Haer holds an M.B.A. from Baker University and a B.S. in Accounting from Northwest Missouri State University.
For more than 15 years, Natalie Merrill has worked within the finance and accounting sectors. Ms. Merrill leads REG's Corporate Finance and Investment Banking activities with responsibility for financing strategy and mergers and acquisitions. Additionally, she oversees the company's operations control team and operations center. Ms. Merrill assists in the evaluation of business development opportunities and strategic investments and coordinates internal financial analysis on behalf of other REG business units.