Our management team consists of an experienced team of leaders who understand the difficult challenges involved in developing and commercializing innovative technologies in rapidly growing markets. They possess vast knowledge of and passion for solving the world’s dependence on petroleum through the development of renewable chemical and fuel alternatives. The management team of Aemetis is ideally suited to solve the challenges present in the emerging industrial biotechnology industry. Please find out more about our management team by reading their individual biographies.

Eric McAfee

Eric A. McAfee, Chairman and CEO

Silicon Valley entrepreneur and venture capitalist with lifelong commitment to agriculture and renewable energy. Founding shareholder of $800 million revenues Pacific Ethanol ($85m Bill Gates equity). Founding shareholder of several publicly-held energy companies: Evolution Petroleum, Pacific Asia Petroleum, Particle Drilling Technologies, World Waste Technologies and Solargen Energy. Has funded more than twenty-five companies as principal investor, and has founded seven public companies with a combined high market value of $4 billion.

Todd Waltz

Todd Waltz, EVP and CFO

Joined Aemetis in 2007 as Corporate Controller and became CFO in 2010. Previously held senior financial management roles with Apple, Inc. for 12 years. Prior to Apple, worked with Ernst & Young and Litton Industries.

Andy Foster

Andy Foster, EVP and President, Aemetis Advanced Fuels

Since joining Aemetis in 2006, Andy Foster has held senior leadership positions including Senior Vice President, Chief Operating Officer and his current role as President of the renewable fuels business of the company. Previously, he served as an executive at Marimba, Cadence Design Systems, and eSilicon Corporation. From 1989 to 1992, he served in the George H.W. Bush White House, and was Deputy Chief of Staff for Illinois Governor Edgar.


Sanjeev Gupta, President, Aemetis International

Joined Aemetis in 2007 as head of Biofuels Marketing and became Executive Vice President of Universal Biofuels subsidiary in India in 2009. Experienced global marketer of specialized chemicals and oils. Previously head of petrochemical trading company with about $250 million of annual revenues and offices on several continents. Previously General Manager of International Marketing for Britannia Industries, a subsidiary of Nabisco Brands, in India.

Satya Chillara

Satya Chillara, VP of Corporate Development

Mr. Chillara joined Aemetis in 2015 as Vice President of Corporate Development. Mr. Chillara brings to Aemetis over 24 years of experience in the cleantech and semiconductor industries and on Wall Street. During his 14 year career on Wall Street, Mr. Chillara served as a Managing Director and Equity Research Analyst working for several investment banks and hedge funds. He was ranked #3 out of 53 analysts in the Wall Street Journal’s survey of Semiconductor Equity Analysts in 2003. During his 10 years in industry, Mr. Chillara was a member of the management team that took ChipPAC public, a Hyundai spinoff. ChipPAC was eventually sold to STATS at a $1.6 billion valuation. At ChipPAC, Mr. Chillara managed a $300 million product line and was responsible for strategic marketing and corporate development activities. Mr. Chillara graduated with a M.S. in Chemical Engineering from the University of Missouri and a B.S. in Chemical Engineering from S. V. University in India. He has published numerous technical papers and stock analyst reports, and has been granted 11 patents in semiconductor packaging.