CAMBRIDGE, Mass.--(BUSINESS WIRE)--Metabolix, Inc. (NASDAQ: MBLX), a bioscience company focused on developing clean, sustainable solutions for plastics, chemicals and energy, today announced that it has appointed Stephen J. Large to its board of directors. Mr. Large brings more than 25 years of experience in the global chemicals industry to the Company’s board. The appointment is effective as of Monday, March 26, 2012.