Mascoma Corporation Names Ethanol Executive Bruce A. Jamerson as Chief Executive Officer

CAMBRIDGE, Mass.--Mascoma Corporation, a leader in cellulosic biomass-to-biofuels development and production, today announced the appointment of Bruce A. Jamerson as its Chief Executive Officer and member of the Board of Directors. He was previously President of VeraSun Energy Corporation, a leading ethanol producer based in Brookings, South Dakota. Mr. Jamerson will apply his experience in ethanol, energy and finance to the company’s strategic initiatives and operations.

“This is an exciting time to join Mascoma and the rapidly growing cellulosic biofuels industry and help address important environmental needs,” said Mr. Jamerson. “With world class technology from Dartmouth and other universities, immediate implementation plans and a long term technology portfolio for Consolidated Bioprocessing, or CBP, Mascoma is ready to launch cellulosic production and to lead it with even more advanced technologies in the future. Cellulosic technology is far more developed than I imagined just a short while ago.”

“The addition of Bruce Jamerson’s experience and expertise will enable Mascoma to dramatically advance cellulosic ethanol production and critical strategic partnerships to deliver affordable, renewable fuels to transportation markets,” said Dr. Colin South, Mascoma’s President. “I look forward to working with Bruce to accelerate the commercialization of our technology.”

Mr. Jamerson served as both President and Chief Financial Officer at VeraSun Energy Corporation until its initial public offering of stock in June, 2006 when he continued as President. Prior to VeraSun, he was Founder and President of Conifer Investments, L.L.C., an investment banking firm and early stage venture investor. Mr. Jamerson also served as Vice President of U.S. Natural Resources, Inc., an affiliate of Kohlberg, Kravis, Roberts & Company. He also worked in the investment banking department of Credit Suisse First Boston in New York, focusing on energy companies. He earned an M.S. Degree from the Sloan School of Management at the Massachusetts Institute of Technology and a B.G.S. Degree from University of Michigan.

“I am delighted to have Bruce join the Mascoma team," added Vinod Khosla, founder of Khosla Ventures, Mascoma's lead investor and a leading international biofuels expert. "Bruce's proven leadership in the ethanol industry and financial community will substantially advance Mascoma’s commercialization activities and validates the readiness of cellulosic ethanol. Mascoma is an important shot in the war on oil, a war our country needs to win.”

Cellulosic biomass (e.g. grass, wood, and various agricultural and forestry wastes) is used to produce ethanol, a renewable fuel blended with gasoline. Cellulosic ethanol takes advantage of plentiful and renewable feedstocks which provide substantially less carbon usage and emissions than traditional petroleum-based fuels, thus helping to reduce greenhouse gases.