“We are delighted that another of our project teams has chosen to work with Metabolix to move PETRO's high-performance, dedicated energy crops closer to realization,” says ARPA-E Program Director Dr. Jonathan Burbaum. “If successful, such crops promise to provide a viable, domestic and renewable alternative to imported petroleum.”The UCLA Engineering ARPA-E grant is the third crops science grant awarded to Metabolix in 2012. In January, the Company initiated work on an ARPA-E-funded project to work with the University of Massachusetts (UMass) Amherst to help increase the natural ability of camelina to produce oils and add the production of energy-dense terpene molecules that can be easily converted into liquid fuels. In April, Metabolix Oilseeds, a wholly owned subsidiary of Metabolix, was awarded a grant for the development of capacity building for commercial-scale polyhydroxybutyrate (PHB)-producing camelina. “Driving a growing interest in our crops science program is the interest from brand owners, consumers and government organizations for developing renewable, non-petroleum-based liquid fuels,” said Dr. Oliver Peoples, chief scientific officer and vice president, research at Metabolix. “Metabolix is a pioneer in plant science and we have a deep history working with leading institutions to successfully further the development of technologies to enhance the productivity of crops. We look forward to applying our strong capabilities in crop science to the work with UCLA Engineering to improve the carbon fixation pathways of camelina and produce new routes to biofuels.” About Metabolix Metabolix, Inc. is an innovation-driven bioscience company delivering sustainable solutions to the plastics, chemicals and energy industries. Metabolix is developing and commercializing Mirel TM and Mvera, TM a family of high-performance bioplastics which are biobased and biodegradable alternatives to many petroleum-based plastics. Metabolix’s biobased chemicals platform utilizes its novel “FAST” recovery process to enable the production of cost-effective, “drop-in” replacements for petroleum-based industrial chemicals. Metabolix is also developing a platform for co-producing plastics, chemicals and energy from crops. Metabolix has established an industry-leading intellectual property portfolio that, together with its knowledge of advanced industrial practice, provides a foundation for industry collaborations. For more information, please visit www.metabolix.com. (MBLX-G) Safe Harbor for Forward-Looking Statements This press release contains forward-looking statements which are made pursuant to the safe harbor provisions of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. The forward-looking statements in this release do not constitute guarantees of future performance. Investors are cautioned that statements in this press release which are not strictly historical statements, including, without limitation, statements regarding the expected results of Metabolix research programs, constitute forward-looking statements. Such forward-looking statements are subject to a number of risks and uncertainties that could cause actual results to differ materially from those anticipated and are detailed in Metabolix's filings with the Securities and Exchange Commission. Metabolix assumes no obligation to update any forward-looking information contained in this press release or with respect to the announcements described herein.